Customer Review For HPT Monoclonal Antibody (STJ10181)
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The document summarizes a customer review of an HPT monoclonal antibody from St. John's Laboratory. The customer used the antibody at a 1:1000 dilution in a Western blot assay with a 1 hour incubation time and found that it gave conclusive results. St. John's Laboratory invites customers to test their products risk-free by applying for free trial samples online and then submitting a review for 30% off their next order.
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Customer Review For LAMA1 Polyclonal Antibody (STJ61545)
Binding to cells via a high affinity receptor, laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components.
Customer Review For SOD1 Monoclonal Antibody (STJ10256)
The protein encoded by this gene binds copper and zinc ions and is one of two isozymes responsible for destroying free superoxide radicals in the body. The encoded isozyme is a soluble cytoplasmic protein, acting as a homodimer to convert naturally-occuring but harmful superoxide radicals to molecular oxygen and hydrogen peroxide. The other isozyme is a mitochondrial protein. Mutations in this gene have been implicated as causes of familial amyotrophic lateral sclerosis. Rare transcript variants have been reported for this gene.
Customer Review For NCKX4 Polyclonal Antibody (STJ94359)
Transports 1 Ca2+ and 1 K+ in exchange for 4 Na+. Controls the rapid response termination and proper regulation of adaptation in olfactory sensory neurons (OSNs) which subsequently influences how odor information is encoded and perceived. May play a role in calcium transport during amelogenesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/nckx4-antibody?filter_name=STJ94359
Customer Review For HA Tag Monoclonal Antibody (STJ34368)
Human influenza hemagglutinin (HA) is a surface glycoprotein required for the infectivity of the human virus. The HA tag is derived from the HA molecule corresponding to amino acids 98-106 has been extensively used as a general epitope tag in expression vectors. Many recombinant proteins have been engineered to express the HA tag, which does not appear to interfere with the bioactivity or the biodistribution of the recombinant protein. This tag facilitates the detection, isolation, and purification of the proteins.
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Customer Review For RARA Polyclonal Antibody (STJ26160)
Receptor for retinoic acid. Retinoic acid receptors bind as heterodimers to their target response elements in response to their ligands, all-trans or 9-cis retinoic acid, and regulate gene expression in various biological processes. The RXR/RAR heterodimers bind to the retinoic acid response elements (RARE) composed of tandem 5'-AGGTCA-3' sites known as DR1-DR5. In the absence of ligand, the RXR-RAR heterodimers associate with a multiprotein complex containing transcription corepressors that induce histone acetylation, chromatin condensation and transcriptional suppression. On ligand binding, the corepressors dissociate from the receptors and associate with the coactivators leading to transcriptional activation. RARA plays an essential role in the regulation of retinoic acid-induced germ cell development during spermatogenesis. Has a role in the survival of early spermatocytes at the beginning prophase of meiosis. In Sertoli cells, may promote the survival and development of early meiotic prophase spermatocytes. In concert with RARG, required for skeletal growth, matrix homeostasis and growth plate function (By similarity). Regulates expression of target genes in a ligand-dependent manner by recruiting chromatin complexes containing KMT2E/MLL5. Mediates retinoic acid-induced granulopoiesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/rara-antibody-p-67834?filter_name=STJ26160
Customer Review For NANOG Monoclonal Antibody (STJ31850)
Transcription regulator involved in inner cell mass and embryonic stem (ES) cells proliferation and self-renewal. Imposes pluripotency on ES cells and prevents their differentiation towards extraembryonic endoderm and trophectoderm lineages. Blocks bone morphogenetic protein-induced mesoderm differentiation of ES cells by physically interacting with SMAD1 and interfering with the recruitment of coactivators to the active SMAD transcriptional complexes. Acts as a transcriptional activator or repressor. Binds optimally to the DNA consensus sequence 5'-TAAT[GT][GT]-3' or 5'-[CG][GA][CG]C[GC]ATTAN[GC]-3'. Able to autorepress its expression in differentiating (ES) cells: binds to its own promoter following interaction with ZNF281/ZFP281, leading to recruitment of the NuRD complex and subsequent repression of expression. When overexpressed, promotes cells to enter into S phase and proliferation.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/nanog-antibody-p-42918?filter_name=STJ31850
Customer Review For mGluR8 Polyclonal Antibody (STJ94114)
G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase activity.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/mglur-8-antibody?filter_name=STJ94114
Customer Review For ELMOD2 Polyclonal Antibody (STJ27186)
This gene encodes one of six engulfment and motility (ELMO) domain-containing proteins. This gene is thought to play a role in antiviral responses. Mutations in this gene may be involved in the cause of familial idiopathic pulmonary fibrosis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/elmod2-antibody-p-68860?filter_name=STJ27186
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Transports 1 Ca2+ and 1 K+ in exchange for 4 Na+. Controls the rapid response termination and proper regulation of adaptation in olfactory sensory neurons (OSNs) which subsequently influences how odor information is encoded and perceived. May play a role in calcium transport during amelogenesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/nckx4-antibody?filter_name=STJ94359
Customer Review For HA Tag Monoclonal Antibody (STJ34368)
Human influenza hemagglutinin (HA) is a surface glycoprotein required for the infectivity of the human virus. The HA tag is derived from the HA molecule corresponding to amino acids 98-106 has been extensively used as a general epitope tag in expression vectors. Many recombinant proteins have been engineered to express the HA tag, which does not appear to interfere with the bioactivity or the biodistribution of the recombinant protein. This tag facilitates the detection, isolation, and purification of the proteins.
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Customer Review For RARA Polyclonal Antibody (STJ26160)
Receptor for retinoic acid. Retinoic acid receptors bind as heterodimers to their target response elements in response to their ligands, all-trans or 9-cis retinoic acid, and regulate gene expression in various biological processes. The RXR/RAR heterodimers bind to the retinoic acid response elements (RARE) composed of tandem 5'-AGGTCA-3' sites known as DR1-DR5. In the absence of ligand, the RXR-RAR heterodimers associate with a multiprotein complex containing transcription corepressors that induce histone acetylation, chromatin condensation and transcriptional suppression. On ligand binding, the corepressors dissociate from the receptors and associate with the coactivators leading to transcriptional activation. RARA plays an essential role in the regulation of retinoic acid-induced germ cell development during spermatogenesis. Has a role in the survival of early spermatocytes at the beginning prophase of meiosis. In Sertoli cells, may promote the survival and development of early meiotic prophase spermatocytes. In concert with RARG, required for skeletal growth, matrix homeostasis and growth plate function (By similarity). Regulates expression of target genes in a ligand-dependent manner by recruiting chromatin complexes containing KMT2E/MLL5. Mediates retinoic acid-induced granulopoiesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/rara-antibody-p-67834?filter_name=STJ26160
Customer Review For NANOG Monoclonal Antibody (STJ31850)
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To purchase this antibody, use the following link: http://www.stjohnslabs.com/nanog-antibody-p-42918?filter_name=STJ31850
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To purchase this antibody, use the following link: http://www.stjohnslabs.com/elmod2-antibody-p-68860?filter_name=STJ27186
Customer Review For PIWIL4 Polyclonal Antibody (STJ25009)
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Transports 1 Ca2+ and 1 K+ in exchange for 4 Na+.
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Hsp90 (heat shock protein 90) is a chaperone protein that assists other proteins to fold properly, stabilizes proteins against heat stress, and aids in protein degradation. It is one of the most common of the heat-related proteins. The "90" comes from the fact that it weighs roughly 90 kiloDaltons. A 90 kDa protein is considered fairly large for a non-fibrous protein.
To purchase this antibody use the following link: http://www.stjohnslabs.com/hsp90a-antibody-p-92714?filter_name=HSP90A
Customer Review For Alpha-synuclein Polyclonal Antibody (STJ95862)
Alpha-synuclein is involved in the regulation of dopamine release and transport. Induces fibrillization of microtubule-associated protein tau. Reduces neuronal responsiveness to various apoptotic stimuli, leading to a decreased caspase-3 activation.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/synuclein-a-antibody-p-94486?filter_name=STJ95862
Customer Review For Actin β Polyclonal Antibody (STJ91464)
Beta-actin (human gene and protein symbol ACTB/ACTB) is one of six different actin isoforms which have been identified in humans. This is one of the two nonmuscle cytoskeletal actins. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/actin-b-antibody?filter_name=STJ91464
Customer Review For EphB4 Polyclonal Antibody (STJ23550)
Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. The Eph family of receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene binds to ephrin-B2 and plays an essential role in vascular development.
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Customer Review For AXIN2 Polyclonal Antibody (STJ26209)
The Axin-related protein, Axin2, presumably plays an important role in the regulation of the stability of beta-catenin in the Wnt signaling pathway, like its rodent homologs, mouse conductin/rat axil. In mouse, conductin organizes a multiprotein complex of APC (adenomatous polyposis of the colon), beta-catenin, glycogen synthase kinase 3-beta, and conductin, which leads to the degradation of beta-catenin.
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Customer Review For CAMSAP3 Polyclonal Antibody (STJ46575)
Microtubule minus-end binding protein that acts as a regulator of non-centrosomal microtubule dynamics and organization. Specifically required for the biogenesis and the maintenance of zonula adherens by anchoring the minus-end of microtubules to zonula adherens and by recruiting the kinesin KIFC3 to those junctional sites. May regulate the nucleation and the polymerization of microtubules. Indirectly, through the microtubule cytoskeleton, may regulate the organization of cellular organelles including the Golgi and the early endosomes.
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Customer Review For ERBB4 Polyclonal Antibody (STJ27886)
Tyrosine-protein kinase that plays an essential role as cell surface receptor for neuregulins and EGF family members and regulates development of the heart, the central nervous system and the mammary gland, gene transcription, cell proliferation, differentiation, migration and apoptosis. Required for normal cardiac muscle differentiation during embryonic development, and for postnatal cardiomyocyte proliferation. Required for normal development of the embryonic central nervous system, especially for normal neural crest cell migration and normal axon guidance. Required for mammary gland differentiation, induction of milk proteins and lactation. Acts as cell-surface receptor for the neuregulins NRG1, NRG2, NRG3 and NRG4 and the EGF family members BTC, EREG and HBEGF. Ligand binding triggers receptor dimerization and autophosphorylation at specific tyrosine residues that then serve as binding sites for scaffold proteins and effectors. Ligand specificity and signaling is modulated by alternative splicing, proteolytic processing, and by the formation of heterodimers with other ERBB family members, thereby creating multiple combinations of intracellular phosphotyrosines that trigger ligand- and context-specific cellular responses. Mediates phosphorylation of SHC1 and activation of the MAP kinases MAPK1/ERK2 and MAPK3/ERK1. Isoform JM-A CYT-1 and isoform JM-B CYT-1 phosphorylate PIK3R1, leading to the activation of phosphatidylinositol 3-kinase and AKT1 and protect cells against apoptosis. Isoform JM-A CYT-1 and isoform JM-B CYT-1 mediate reorganization of the actin cytoskeleton and promote cell migration in response to NRG1. Isoform JM-A CYT-2 and isoform JM-B CYT-2 lack the phosphotyrosine that mediates interaction with PIK3R1, and hence do not phosphorylate PIK3R1, do not protect cells against apoptosis, and do not promote reorganization of the actin cytoskeleton and cell migration. Proteolytic processing of isoform JM-A CYT-1 and isoform JM-A CYT-2 gives rise to the corresponding soluble intracellular domains (4ICD) that translocate to the nucleus, promote nuclear import of STAT5A, activation of STAT5A, mammary epithelium differentiation, cell proliferation and activation of gene expression. The ERBB4 soluble intracellular domains (4ICD) colocalize with STAT5A at the CSN2 promoter to regulate transcription of milk proteins during lactation. The ERBB4 soluble intracellular domains can also translocate to mitochondria and promote apoptosis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/erbb4?filter_name=STJ27886
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)St John's Laboratory Ltd
Histones are nuclear proteins that form octameric structures which bind DNA to form units of chromatin called nucleosomes. The family of histones—H2A, H2B, H3, and H4—are key players in gene regulation. They undergo a number of post-translational modifications (PTM) in response to various stimuli, including phosphorylation on serine and threonine residues and methylation on lysine residues. PTMs produce configural changes in histone proteins that may induce nucleosome remodeling and expose or hide DNA sequences from transcriptional complexes. Histone H4 lysine 20 (H4K20) may undergo mono-, di-, or trimethylation, which is catalyzed by the methyltransferase PR-Set7 (Set8 or KMT5a). Methylated H4K20 plays a role in regulating DNA damage responses, mitosis, DNA replication, and gene expression. Trimethylation of H4K20 contributes to gene silencing, and is a mark of the repressive heterochromatin state.
To purchase this antibody use the following link: http://www.stjohnslabs.com/histone-h4-tri-methyl-lys20-antibody?filter_name=STJ97154Customer Review For FAAH Polyclonal Antibody (STJ23602)
FAAH antibody degrades bioactive fatty acid amides like oleamide, the endogenous cannabinoid, anandamide and myristic amide to their corresponding acids, thereby serving to terminate the signaling functions of these molecules. Hydrolyzes polyunsaturated substrate anandamide preferentially as compared to monounsaturated substrates.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/faah-antibody-p-65320?filter_name=STJ23602
Customer Review For D2HGDH Polyclonal Antibody (STJ27209)
This gene encodes D-2hydroxyglutarate dehydrogenase, a mitochondrial enzyme belonging to the FAD-binding oxidoreductase/transferase type 4 family. This enzyme, which is most active in liver and kidney but also active in heart and brain, converts D-2-hydroxyglutarate to 2-ketoglutarate. Mutations in this gene are present in D-2-hydroxyglutaric aciduria, a rare recessive neurometabolic disorder causing developmental delay, epilepsy, hypotonia, and dysmorphic features.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/d2hgdh-antibody-p-68883?filter_name=STJ27209
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...St John's Laboratory Ltd
Tubulin is the major constituent of microtubules. It binds two molecules of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain. TUBB3 plays a critical role in proper axon guidance and mantainance.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/tubulin-beta-antibody?filter_name=STJ31562 Customer Review For LPCAT1 Polyclonal Antibody (STJ27005)
LPCAT1 antibody possess both acyltransferase and acetyltransferase activities. Activity is calcium-independent. Mediates the conversion of 1-acyl-sn-glycero-3-phosphocholine (LPC) into phosphatidylcholine (PC). Displays a clear preference for saturated fatty acyl-CoAs, and 1-myristoyl or 1-palmitoyl LPC as acyl donors and acceptors, respectively. May synthesize phosphatidylcholine in pulmonary surfactant, thereby playing a pivotal role in respiratory physiology.
Publication:
http://www.ncbi.nlm.nih.gov/pubmed/16864775
http://www.ncbi.nlm.nih.gov/pubmed/21498505
To purchase this antibody, use the following link: http://www.stjohnslabs.com/lpcat1-antibody-p-68679?filter_name=STJ27005
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)St John's Laboratory Ltd
St John’s Laboratory suppliers a highly photostable mCherry tag antibody, which is resistant to photobleaching. Independent validation reviews provide feedback on real-experimental use:
https://www.scienceexchange.com/validations/29688
https://www.scienceexchange.com/validations/29733
https://www.scienceexchange.com/validations/29708
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Serine/threonine protein kinase which is a central regulator of cellular metabolism, growth and survival in response to hormones, growth factors, nutrients, energy and stress signals. MTOR directly or indirectly regulates the phosphorylation of at least 800 proteins. Functions as part of 2 structurally and functionally distinct signaling complexes mTORC1 and mTORC2 (mTOR complex 1 and 2). Activated mTORC1 up-regulates protein synthesis by phosphorylating key regulators of mRNA translation and ribosome synthesis. This includes phosphorylation of EIF4EBP1 and release of its inhibition toward the elongation initiation factor 4E (eiF4E). Moreover, phosphorylates and activates RPS6KB1 and RPS6KB2 that promote protein synthesis by modulating the activity of their downstream targets including ribosomal protein S6, eukaryotic translation initiation factor EIF4B, and the inhibitor of translation initiation PDCD4. Stimulates the pyrimidine biosynthesis pathway, both by acute regulation through RPS6KB1-mediated phosphorylation of the biosynthetic enzyme CAD, and delayed regulation, through transcriptional enhancement of the pentose phosphate pathway which produces 5-phosphoribosyl-1-pyrophosphate (PRPP), an allosteric activator of CAD at a later step in synthesis, this function is dependent on the mTORC1 complex. Regulates ribosome synthesis by activating RNA polymerase III-dependent transcription through phosphorylation and inhibition of MAF1 an RNA polymerase III-repressor.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/mtor-antibody-p-93228?filter_name=STJ94280
Customer Review For CAR Polyclonal Antibody (STJ91996)
Component of the epithelial apical junction complex that may function as an homophilic cell adhesion molecule and is essential for tight junction integrity. Also involved in transepithelial migration of leukocytes through adhesive interactions with AMICA1/JAML a transmembrane protein of the plasma membrane of leukocytes. The interaction between both receptors also mediates the activation of gamma-delta T-cells, a subpopulation of T-cells residing in epithelia and involved in tissue homeostasis and repair. Upon epithelial CXADR-binding, AMICA1 induces downstream cell signaling events in gamma-delta T-cells through PI3-kinase and MAP kinases. It results in proliferation and production of cytokines and growth factors by T-cells that in turn stimulate epithelial tissues repair.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/car-antibody?filter_name=STJ91996
Customer Review For EphA2 Polyclonal Antibody (STJ92940)
Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Activated by the ligand ephrin-A1/EFNA1 regulates migration, integrin-mediated adhesion, proliferation and differentiation of cells. Regulates cell adhesion and differentiation through DSG1/desmoglein-1 and inhibition of the ERK1/ERK2 (MAPK3/MAPK1, respectively) signaling pathway. May also participate in UV radiation-induced apoptosis and have a ligand-independent stimulatory effect on chemotactic cell migration. During development, may function in distinctive aspects of pattern formation and subsequently in development of several fetal tissues. Involved for instance in angiogenesis, in early hindbrain development and epithelial proliferation and branching morphogenesis during mammary gland development. Engaged by the ligand ephrin-A5/EFNA5 may regulate lens fiber cells shape and interactions and be important for lens transparency development and maintenance. With ephrin-A2/EFNA2 may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/epha2-antibody-p-96094?filter_name=STJ92940
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)St John's Laboratory Ltd
Acetyl-Histone H2A (Lys5) Antibody detects endogenous levels of histone H2A only when acetylated at lysine 5.
To purchase this antibody use the following link: http://www.stjohnslabs.com/histone-h2a-acetyl-lys5-antibody?filter_name=STJ97171
Customer Review For GSK3β Polyclonal Antibody (STJ93447)
GSK3β Polyclonal Antibody is an active protein kinase that acts as a negative regulator in the hormonal control of glucose homeostasis, Wnt signaling and regulation of transcription factors and microtubules, by phosphorylating and inactivating glycogen synthase (GYS1 or GYS2), EIF2B, CTNNB1/beta-catenin, APC, AXIN1, DPYSL2/CRMP2, JUN, NFATC1/NFATC, MAPT/TAU and MACF1. Requires primed phosphorylation of the majority of its substrates.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/gsk3b-antibody-p-92568?filter_name=STJ93447
Customer Review For Actin β Monoclonal Antibody (STJ10024)
Beta-actin (human gene and protein symbol ACTB/ACTB) is one of six different actin isoforms which have been identified in humans. This is one of the two nonmuscle cytoskeletal actins. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus.
Western Blot Customer Review For Vimentin Polyclonal Antibody (STJ31262)
Vimentins are class-III intermediate filaments found in various non-epithelial cells, especially mesenchymal cells. Vimentin is attached to the nucleus, endoplasmic reticulum, and mitochondria, either laterally or terminally. Involved with LARP6 in the stabilization of type I collagen mRNAs for CO1A1 and CO1A2.
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Customer Review For PIWIL4 Polyclonal Antibody (STJ25009)
PIWIL4 belongs to the Argonaute family of proteins, which function in development and maintenance of germline stem cells. Plays a central role during spermatogenesis by repressing transposable elements and prevent their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and govern the methylation and subsequent repression of transposons. Directly binds piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements. Associates with secondary piRNAs antisense and PIWIL2/MILI is required for such association.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/piwil4-antibody-p-66699?filter_name=STJ25009
Customer Review For NCKX3 Polyclonal Antibody (STJ94358)
Transports 1 Ca2+ and 1 K+ in exchange for 4 Na+.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/nckx3-antibody?filter_name=STJ94358
Customer Review for HSP90A Polyclonal Antibody (STJ93622)
Heat shock proteins, as a class, are among the most highly expressed cellular proteins across all species. As their name implies, heat shock proteins protect cells when stressed by elevated temperatures. They account for 1–2% of total protein in unstressed cells. However, when cells are heated, the fraction of heat shock proteins increases to 4–6% of cellular proteins.
Hsp90 (heat shock protein 90) is a chaperone protein that assists other proteins to fold properly, stabilizes proteins against heat stress, and aids in protein degradation. It is one of the most common of the heat-related proteins. The "90" comes from the fact that it weighs roughly 90 kiloDaltons. A 90 kDa protein is considered fairly large for a non-fibrous protein.
To purchase this antibody use the following link: http://www.stjohnslabs.com/hsp90a-antibody-p-92714?filter_name=HSP90A
Customer Review For Alpha-synuclein Polyclonal Antibody (STJ95862)
Alpha-synuclein is involved in the regulation of dopamine release and transport. Induces fibrillization of microtubule-associated protein tau. Reduces neuronal responsiveness to various apoptotic stimuli, leading to a decreased caspase-3 activation.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/synuclein-a-antibody-p-94486?filter_name=STJ95862
Customer Review For Actin β Polyclonal Antibody (STJ91464)
Beta-actin (human gene and protein symbol ACTB/ACTB) is one of six different actin isoforms which have been identified in humans. This is one of the two nonmuscle cytoskeletal actins. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/actin-b-antibody?filter_name=STJ91464
Customer Review For EphB4 Polyclonal Antibody (STJ23550)
Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. The Eph family of receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene binds to ephrin-B2 and plays an essential role in vascular development.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/ephb4-antibody-p-65270?filter_name=STJ23550
Customer Review For AXIN2 Polyclonal Antibody (STJ26209)
The Axin-related protein, Axin2, presumably plays an important role in the regulation of the stability of beta-catenin in the Wnt signaling pathway, like its rodent homologs, mouse conductin/rat axil. In mouse, conductin organizes a multiprotein complex of APC (adenomatous polyposis of the colon), beta-catenin, glycogen synthase kinase 3-beta, and conductin, which leads to the degradation of beta-catenin.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/axin2-antibody-p-67883?filter_name=STJ26209
Customer Review For CAMSAP3 Polyclonal Antibody (STJ46575)
Microtubule minus-end binding protein that acts as a regulator of non-centrosomal microtubule dynamics and organization. Specifically required for the biogenesis and the maintenance of zonula adherens by anchoring the minus-end of microtubules to zonula adherens and by recruiting the kinesin KIFC3 to those junctional sites. May regulate the nucleation and the polymerization of microtubules. Indirectly, through the microtubule cytoskeleton, may regulate the organization of cellular organelles including the Golgi and the early endosomes.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/camsap3-antibody-n-term-p-78995?filter_name=STJ46575
Customer Review For ERBB4 Polyclonal Antibody (STJ27886)
Tyrosine-protein kinase that plays an essential role as cell surface receptor for neuregulins and EGF family members and regulates development of the heart, the central nervous system and the mammary gland, gene transcription, cell proliferation, differentiation, migration and apoptosis. Required for normal cardiac muscle differentiation during embryonic development, and for postnatal cardiomyocyte proliferation. Required for normal development of the embryonic central nervous system, especially for normal neural crest cell migration and normal axon guidance. Required for mammary gland differentiation, induction of milk proteins and lactation. Acts as cell-surface receptor for the neuregulins NRG1, NRG2, NRG3 and NRG4 and the EGF family members BTC, EREG and HBEGF. Ligand binding triggers receptor dimerization and autophosphorylation at specific tyrosine residues that then serve as binding sites for scaffold proteins and effectors. Ligand specificity and signaling is modulated by alternative splicing, proteolytic processing, and by the formation of heterodimers with other ERBB family members, thereby creating multiple combinations of intracellular phosphotyrosines that trigger ligand- and context-specific cellular responses. Mediates phosphorylation of SHC1 and activation of the MAP kinases MAPK1/ERK2 and MAPK3/ERK1. Isoform JM-A CYT-1 and isoform JM-B CYT-1 phosphorylate PIK3R1, leading to the activation of phosphatidylinositol 3-kinase and AKT1 and protect cells against apoptosis. Isoform JM-A CYT-1 and isoform JM-B CYT-1 mediate reorganization of the actin cytoskeleton and promote cell migration in response to NRG1. Isoform JM-A CYT-2 and isoform JM-B CYT-2 lack the phosphotyrosine that mediates interaction with PIK3R1, and hence do not phosphorylate PIK3R1, do not protect cells against apoptosis, and do not promote reorganization of the actin cytoskeleton and cell migration. Proteolytic processing of isoform JM-A CYT-1 and isoform JM-A CYT-2 gives rise to the corresponding soluble intracellular domains (4ICD) that translocate to the nucleus, promote nuclear import of STAT5A, activation of STAT5A, mammary epithelium differentiation, cell proliferation and activation of gene expression. The ERBB4 soluble intracellular domains (4ICD) colocalize with STAT5A at the CSN2 promoter to regulate transcription of milk proteins during lactation. The ERBB4 soluble intracellular domains can also translocate to mitochondria and promote apoptosis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/erbb4?filter_name=STJ27886
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)St John's Laboratory Ltd
Histones are nuclear proteins that form octameric structures which bind DNA to form units of chromatin called nucleosomes. The family of histones—H2A, H2B, H3, and H4—are key players in gene regulation. They undergo a number of post-translational modifications (PTM) in response to various stimuli, including phosphorylation on serine and threonine residues and methylation on lysine residues. PTMs produce configural changes in histone proteins that may induce nucleosome remodeling and expose or hide DNA sequences from transcriptional complexes. Histone H4 lysine 20 (H4K20) may undergo mono-, di-, or trimethylation, which is catalyzed by the methyltransferase PR-Set7 (Set8 or KMT5a). Methylated H4K20 plays a role in regulating DNA damage responses, mitosis, DNA replication, and gene expression. Trimethylation of H4K20 contributes to gene silencing, and is a mark of the repressive heterochromatin state.
To purchase this antibody use the following link: http://www.stjohnslabs.com/histone-h4-tri-methyl-lys20-antibody?filter_name=STJ97154Customer Review For FAAH Polyclonal Antibody (STJ23602)
FAAH antibody degrades bioactive fatty acid amides like oleamide, the endogenous cannabinoid, anandamide and myristic amide to their corresponding acids, thereby serving to terminate the signaling functions of these molecules. Hydrolyzes polyunsaturated substrate anandamide preferentially as compared to monounsaturated substrates.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/faah-antibody-p-65320?filter_name=STJ23602
Customer Review For D2HGDH Polyclonal Antibody (STJ27209)
This gene encodes D-2hydroxyglutarate dehydrogenase, a mitochondrial enzyme belonging to the FAD-binding oxidoreductase/transferase type 4 family. This enzyme, which is most active in liver and kidney but also active in heart and brain, converts D-2-hydroxyglutarate to 2-ketoglutarate. Mutations in this gene are present in D-2-hydroxyglutaric aciduria, a rare recessive neurometabolic disorder causing developmental delay, epilepsy, hypotonia, and dysmorphic features.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/d2hgdh-antibody-p-68883?filter_name=STJ27209
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...St John's Laboratory Ltd
Tubulin is the major constituent of microtubules. It binds two molecules of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain. TUBB3 plays a critical role in proper axon guidance and mantainance.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/tubulin-beta-antibody?filter_name=STJ31562 Customer Review For LPCAT1 Polyclonal Antibody (STJ27005)
LPCAT1 antibody possess both acyltransferase and acetyltransferase activities. Activity is calcium-independent. Mediates the conversion of 1-acyl-sn-glycero-3-phosphocholine (LPC) into phosphatidylcholine (PC). Displays a clear preference for saturated fatty acyl-CoAs, and 1-myristoyl or 1-palmitoyl LPC as acyl donors and acceptors, respectively. May synthesize phosphatidylcholine in pulmonary surfactant, thereby playing a pivotal role in respiratory physiology.
Publication:
http://www.ncbi.nlm.nih.gov/pubmed/16864775
http://www.ncbi.nlm.nih.gov/pubmed/21498505
To purchase this antibody, use the following link: http://www.stjohnslabs.com/lpcat1-antibody-p-68679?filter_name=STJ27005
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)St John's Laboratory Ltd
St John’s Laboratory suppliers a highly photostable mCherry tag antibody, which is resistant to photobleaching. Independent validation reviews provide feedback on real-experimental use:
https://www.scienceexchange.com/validations/29688
https://www.scienceexchange.com/validations/29733
https://www.scienceexchange.com/validations/29708
To purchase this antibody, use the following link: http://www.stjohnslabs.com/mcherry-tag-antibody?filter_name=STJ34373Customer Review For mTOR Polyclonal Antibody (STJ94280)
Serine/threonine protein kinase which is a central regulator of cellular metabolism, growth and survival in response to hormones, growth factors, nutrients, energy and stress signals. MTOR directly or indirectly regulates the phosphorylation of at least 800 proteins. Functions as part of 2 structurally and functionally distinct signaling complexes mTORC1 and mTORC2 (mTOR complex 1 and 2). Activated mTORC1 up-regulates protein synthesis by phosphorylating key regulators of mRNA translation and ribosome synthesis. This includes phosphorylation of EIF4EBP1 and release of its inhibition toward the elongation initiation factor 4E (eiF4E). Moreover, phosphorylates and activates RPS6KB1 and RPS6KB2 that promote protein synthesis by modulating the activity of their downstream targets including ribosomal protein S6, eukaryotic translation initiation factor EIF4B, and the inhibitor of translation initiation PDCD4. Stimulates the pyrimidine biosynthesis pathway, both by acute regulation through RPS6KB1-mediated phosphorylation of the biosynthetic enzyme CAD, and delayed regulation, through transcriptional enhancement of the pentose phosphate pathway which produces 5-phosphoribosyl-1-pyrophosphate (PRPP), an allosteric activator of CAD at a later step in synthesis, this function is dependent on the mTORC1 complex. Regulates ribosome synthesis by activating RNA polymerase III-dependent transcription through phosphorylation and inhibition of MAF1 an RNA polymerase III-repressor.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/mtor-antibody-p-93228?filter_name=STJ94280
Customer Review For CAR Polyclonal Antibody (STJ91996)
Component of the epithelial apical junction complex that may function as an homophilic cell adhesion molecule and is essential for tight junction integrity. Also involved in transepithelial migration of leukocytes through adhesive interactions with AMICA1/JAML a transmembrane protein of the plasma membrane of leukocytes. The interaction between both receptors also mediates the activation of gamma-delta T-cells, a subpopulation of T-cells residing in epithelia and involved in tissue homeostasis and repair. Upon epithelial CXADR-binding, AMICA1 induces downstream cell signaling events in gamma-delta T-cells through PI3-kinase and MAP kinases. It results in proliferation and production of cytokines and growth factors by T-cells that in turn stimulate epithelial tissues repair.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/car-antibody?filter_name=STJ91996
Customer Review For EphA2 Polyclonal Antibody (STJ92940)
Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Activated by the ligand ephrin-A1/EFNA1 regulates migration, integrin-mediated adhesion, proliferation and differentiation of cells. Regulates cell adhesion and differentiation through DSG1/desmoglein-1 and inhibition of the ERK1/ERK2 (MAPK3/MAPK1, respectively) signaling pathway. May also participate in UV radiation-induced apoptosis and have a ligand-independent stimulatory effect on chemotactic cell migration. During development, may function in distinctive aspects of pattern formation and subsequently in development of several fetal tissues. Involved for instance in angiogenesis, in early hindbrain development and epithelial proliferation and branching morphogenesis during mammary gland development. Engaged by the ligand ephrin-A5/EFNA5 may regulate lens fiber cells shape and interactions and be important for lens transparency development and maintenance. With ephrin-A2/EFNA2 may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/epha2-antibody-p-96094?filter_name=STJ92940
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)St John's Laboratory Ltd
Acetyl-Histone H2A (Lys5) Antibody detects endogenous levels of histone H2A only when acetylated at lysine 5.
To purchase this antibody use the following link: http://www.stjohnslabs.com/histone-h2a-acetyl-lys5-antibody?filter_name=STJ97171
Customer Review For GSK3β Polyclonal Antibody (STJ93447)
GSK3β Polyclonal Antibody is an active protein kinase that acts as a negative regulator in the hormonal control of glucose homeostasis, Wnt signaling and regulation of transcription factors and microtubules, by phosphorylating and inactivating glycogen synthase (GYS1 or GYS2), EIF2B, CTNNB1/beta-catenin, APC, AXIN1, DPYSL2/CRMP2, JUN, NFATC1/NFATC, MAPT/TAU and MACF1. Requires primed phosphorylation of the majority of its substrates.
To purchase this antibody, use the following link: http://www.stjohnslabs.com/gsk3b-antibody-p-92568?filter_name=STJ93447
What's hot (20)
Customer Review For PIWIL4 Polyclonal Antibody (STJ25009)
Customer Review For PIWIL4 Polyclonal Antibody (STJ25009)
Customer Review For NCKX3 Polyclonal Antibody (STJ94358)
Customer Review For NCKX3 Polyclonal Antibody (STJ94358)
Customer Review for HSP90A Polyclonal Antibody (STJ93622)
Customer Review for HSP90A Polyclonal Antibody (STJ93622)
Customer Review For Alpha-synuclein Polyclonal Antibody (STJ95862)
Customer Review For Alpha-synuclein Polyclonal Antibody (STJ95862)
Customer Review For Actin β Polyclonal Antibody (STJ91464)
Customer Review For Actin β Polyclonal Antibody (STJ91464)
Customer Review For EphB4 Polyclonal Antibody (STJ23550)
Customer Review For EphB4 Polyclonal Antibody (STJ23550)
Customer Review For AXIN2 Polyclonal Antibody (STJ26209)
Customer Review For AXIN2 Polyclonal Antibody (STJ26209)
Customer Review For CAMSAP3 Polyclonal Antibody (STJ46575)
Customer Review For CAMSAP3 Polyclonal Antibody (STJ46575)
Customer Review For ERBB4 Polyclonal Antibody (STJ27886)
Customer Review For ERBB4 Polyclonal Antibody (STJ27886)
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)
Customer Review for Histone H4 (TriMethyl Lys20) Polyclonal Antibody (STJ97154)
Customer Review For FAAH Polyclonal Antibody (STJ23602)
Customer Review For FAAH Polyclonal Antibody (STJ23602)
Customer Review For D2HGDH Polyclonal Antibody (STJ27209)
Customer Review For D2HGDH Polyclonal Antibody (STJ27209)
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...
Customer Review For Tubulin-beta Polyclonal Antibody - IF&ICC Application (ST...
Customer Review For LPCAT1 Polyclonal Antibody (STJ27005)
Customer Review For LPCAT1 Polyclonal Antibody (STJ27005)
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)
Independent Antibody Validation For mCherry Tag Monoclonal Antibody (STJ34373)
Customer Review For mTOR Polyclonal Antibody (STJ94280)
Customer Review For mTOR Polyclonal Antibody (STJ94280)
Customer Review For CAR Polyclonal Antibody (STJ91996)
Customer Review For CAR Polyclonal Antibody (STJ91996)
Customer Review For EphA2 Polyclonal Antibody (STJ92940)
Customer Review For EphA2 Polyclonal Antibody (STJ92940)
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)
Customer Review for Histone H2A (Acetyl Lys5) Polyclonal Antibody (STJ97171)
Customer Review For GSK3β Polyclonal Antibody (STJ93447)
Customer Review For GSK3β Polyclonal Antibody (STJ93447)
Similar to Customer Review For HPT Monoclonal Antibody (STJ10181)
Customer Review For Actin β Monoclonal Antibody (STJ10024)
Beta-actin (human gene and protein symbol ACTB/ACTB) is one of six different actin isoforms which have been identified in humans. This is one of the two nonmuscle cytoskeletal actins. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus.
Western Blot Customer Review For Vimentin Polyclonal Antibody (STJ31262)
Vimentins are class-III intermediate filaments found in various non-epithelial cells, especially mesenchymal cells. Vimentin is attached to the nucleus, endoplasmic reticulum, and mitochondria, either laterally or terminally. Involved with LARP6 in the stabilization of type I collagen mRNAs for CO1A1 and CO1A2.
Antibody Customer Review For p70 S6 Kinase Polyclonal Antibody (STJ31332)
p70 S6 kinase or p70S6K is a serine/threonine kinase that acts downstream of PIP3 and phosphoinositide-dependent kinase-1 in the PI3 kinase pathway. As the name suggests, its target substrate is the S6 ribosomal protein. Phosphorylation of S6 induces protein synthesis at the ribosome.
The phosphorylation of P70S6K at threonine 389 has been used as a hallmark of activation by mTOR and correlated with autophagy inhibition in various situations. However, several recent studies suggest that the activity of P70S6K plays a more positive role in the increase of autophagy.
To purchase this antibody use the following link: http://www.stjohnslabs.com/p70-s6-kinase-antibody?filter_name=STJ31332
Antibody Discovery by Single B Cell Screening on Beacon®
Amy Sheng, PhD provides an overview of antibody screening platforms and presents applications and case studies using the Beacon® platform for antibody discovery.
Single B cell screening is a powerful and efficient strategy for generating antigen-specific monoclonal antibodies. Distinguished with fluorescence-activated B cell sorting, the Beacon® platform is based on plasma cell screening, making it easier to obtain antibody genes.
The Beacon® single-cell optofluidic system combines a unique optoelectro positioning (OEP) technology with novel microfluidic technology. It can be used to accurately select single cells on a chip, perform multiple single-cell assays, and export target cells based on specific results. The Beacon® optofluidic platform preserves the diversity of B cells, generating high-quality positive hits at an early stage of discovery and avoiding the loss of “good clones”.
Key Topics Include:
- B cell differentiation and development
- Pros and cons of mainstream antibody screening platforms
- Mechanisms, applications, and case studies using the Beacon® platform for antibody screening
- Sino Biological’s capacity using the Beacon® platform
Antibody Customer Review For p70 S6 Kinase (Phospho-Thr389/412) Polyclonal An...
Antibody Customer Review For p70 S6 Kinase (Phospho-Thr389/412) Polyclonal An...St John's Laboratory Ltd
p70S6 kinase or p70S6K is a serine/threonine kinase that acts downstream of PIP3 and phosphoinositide-dependent kinase-1 in the PI3 kinase pathway. As the name suggests, its target substrate is the S6 ribosomal protein. Phosphorylation of S6 induces protein synthesis at the ribosome.
The phosphorylation of P70S6K at threonine 389 has been used as a hallmark of activation by mTOR and correlated with autophagy inhibition in various situations. However, several recent studies suggest that the activity of P70S6K plays a more positive role in the increase of autophagy.
Phosphorylation of Thr229 in the catalytic domain and Thr389 in the linker domain are most critical for kinase function. Phosphorylation of Thr389, however, most closely correlates with p70 kinase activity in vivo. Prior phosphorylation of Thr389
is required for the action of phosphoinositide 3-dependent
protein kinase 1 (PDK1) on Thr229. Phosphorylation
of this site is stimulated by growth factors such as insulin,
EGF and FGF, as well as by serum and some G-proteincoupled receptor ligands, and is blocked by wortmannin, LY294002 (PI-3K inhibitor) and rapamycin (FRAP/mTOR inhibitor) .
To purchase this antibody use the following link: http://www.stjohnslabs.com/p70-s6-kinase-antibody-phospho-thr389412?filter_name=STJ30854Biopharmaceutical Process Development: Good Manufacturing Practices or Breaki...
These are the slides from a presentation "Biopharmaceutical Process Development: Good Manufacturing Practices or Breaking Bad?" given by Andrew Warr as part of the 2015 Careers After Biological Sciences programme at the University of Leicester UK
How often is Right for Laboratory Quality Control?
Improving Laboratory Performance Through QC - How often is right for QC? Ask the Right Questions to get the Right Answers.
It is widely accepted that laboratories should perform QC at least every day of patient testing. However, is this adequate for every assay and for every laboratory? Is running QC once per day really sufficient? what is the "right" frequency for running QC samples in your laboratory?
Decon7 Crushes Glutex in Study (Salmonella on Wood and Concrete Carriers)
Lab test results for Decon7 vs Glutex...
Average reduction on WOOD carriers after TEN minutes:
Decon7 1:1 - 5.07 log reduction (99.9991% kill rate)
Glutex 1:256 - 0.30 log reduction (50.13% kill rate)
Average reduction on CONCRETE carriers after TEN minutes:
Decon7 1:1 - 7.82 log reduction (99.999998% kill rate)
Glutex 1:256 - 7.82 log reduction (99.999998% kill rate)
Re-entry time after fogging Decon7 is 8 hours... Glutex is 72 hours.
D7 is nontoxic, nonhazardous, and nonflammable!
Γιώργος Βαρδαμίδης, 11th Clinical Research Conference
DEMO’s investment in Biotechnology – Development and Production of Monoclonal Antibodies
Risk analysis of a compounding pharmacy
What if standard microbial risk analysis was performed on a fictional compounding pharmacy operation? This presentation highlights area of FOCUS.
Drug Types: Biosimilars, generics and more. December 2017 Webinar 12122017
Specialty pharmacist Stevan Lalich of CVS Health breaks down the differences between biosimilar, biologic, generic, and brand name drugs – and why it’s important! In this comprehensive webinar, learn about the medicines in your cabinet and the process they endure before reaching you. This is a timely and unique webinar not to be missed
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Antibody Discovery by Single B Cell Screening on Beacon®
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Antibody Customer Review For p70 S6 Kinase (Phospho-Thr389/412) Polyclonal An...
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How often is Right for Laboratory Quality Control?
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Decon7 Crushes Glutex in Study (Salmonella on Wood and Concrete Carriers)
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Γιώργος Βαρδαμίδης, 11th Clinical Research Conference
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More from St John's Laboratory Ltd
Immunohistochemistry Customer Review Anti-Smo antibody (STJ95710)
G protein-coupled receptor that probably associates with the patched protein (PTCH) to transduce the hedgehog's proteins signal. Binding of sonic hedgehog (SHH) to its receptor patched is thought to prevent normal inhibition by patched of smoothened (SMO). Required for the accumulation of KIF7 and GLI3 in the cilia.
Anti-Smo antibody (STJ95710): http://www.stjohnslabs.com/smo-antibody-p-94371?filter_name=STJ95710
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Western Blot Customer Review Anti Glucocorticoid Receptor antibody (STJ97101)
Western Blot Customer Review Anti Glucocorticoid Receptor antibody (STJ97101)St John's Laboratory Ltd
Receptor for glucocorticoids (GC). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modulator of other transcription factors. Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Involved in chromatin remodeling . Plays a role in rapid mRNA degradation by binding to the 5' UTR of target mRNAs and interacting with PNRC2 in a ligand-dependent manner. Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth (By similarity). Has transcriptional activation and repression activity . Mediates glucocorticoid-induced apoptosis . Promotes accurate chromosome segregation during mitosis . May act as a tumor suppressor . May play a negative role in adipogenesis through the regulation of lipolytic and antilipogenic gene expression (By similarity). / Isoform Beta: Acts as a dominant negative inhibitor of isoform Alpha . Has intrinsic transcriptional activity independent of isoform Alpha when both isoforms are coexpressed.
Join our Antibody Validation Project: http://www.stjohnslabs.com/services/antibody-validation
Anti glucocorticoid receptor antibody (STJ97101):
http://www.stjohnslabs.com/glucocorticoid-receptor-antibody-p-98736?filter_name=STJ97101Western Blot Customer Review Anti-Phospho-Cofilin (S3) Antibody (STJ90230)
Binds to F-actin and exhibits pH-sensitive F-actin depolymerizing activity. Regulates actin cytoskeleton dynamics. Important for normal progress through mitosis and normal cytokinesis. Plays a role in the regulation of cell morphology and cytoskeletal organization. Required for the up-regulation of atypical chemokine receptor ACKR2 from endosomal compartment to cell membrane, increasing its efficiency in chemokine uptake and degradation.
Anti-Phospho-Cofilin (S3) -http://www.stjohnslabs.com/phospho-cofilin-s3-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Scientist of the Month - May Byron Baron
This June, Dr. Byron Baron from the University of Malta, Malta, is our Scientist of the Month! He's shared with us his research highlights, his current projects and some comments on the biotechnology industry.
Want to be our Scientist of the Month? Contact info@stjohnslabs.com
Western Blot Customer Review Anti-WAVE2 Antibody (STJ96263)
Downstream effector molecule involved in the transmission of signals from tyrosine kinase receptors and small GTPases to the actin cytoskeleton. Promotes formation of actin filaments. Part of the WAVE complex that regulates lamellipodia formation. The WAVE complex regulates actin filament reorganization via its interaction with the Arp2/3 complex.
Anti-WAVE2 -http://www.stjohnslabs.com/wave2-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Western Blot Customer Review Anti-Endophilin I Antibody (STJ92924)
Implicated in synaptic vesicle endocytosis. May recruit other proteins to membranes with high curvature.
Brain, mostly in frontal cortex. Expressed at high level in fetal cerebellum.
Anti-Endophilin I -http://www.stjohnslabs.com/endophilin-i-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Western Blot Customer Review Anti-β-tubulin Antibody (STJ97037)
Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain. TUBB3 plays a critical role in proper axon guidance and mantainance.
Anti-β-tubulin -http://www.stjohnslabs.com/b-tubulin-antibody-p-98672
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Immunohistochemistry Antibody Validation Report for Anti-Caspase-8 Antibody (...
Immunohistochemistry Antibody Validation Report for Anti-Caspase-8 Antibody (...St John's Laboratory Ltd
Most upstream protease of the activation cascade of caspases responsible for the TNFRSF6/FAS mediated and TNFRSF1A induced cell death. Binding to the adapter molecule FADD recruits it to either receptor. The resulting aggregate called death-inducing signaling complex (DISC) performs CASP8 proteolytic activation. The active dimeric enzyme is then liberated from the DISC and free to activate downstream apoptotic proteases. Proteolytic fragments of the N-terminal propeptide (termed CAP3, CAP5 and CAP6) are likely retained in the DISC. Cleaves and activates CASP3, CASP4, CASP6, CASP7, CASP9 and CASP10. May participate in the GZMB apoptotic pathways. Cleaves ADPRT. Hydrolyzes the small-molecule substrate, Ac-Asp-Glu-Val-Asp-|-AMC. Likely target for the cowpox virus CRMA death inhibitory protein. Isoform 5, isoform 6, isoform 7 and isoform 8 lack the catalytic site and may interfere with the pro-apoptotic activity of the complex. / Strict requirement for Asp at position P1 and has a preferred cleavage sequence of (Leu/Asp/Val)-Glu-Thr-Asp-|-(Gly/Ser/Ala). / Inhibited by the effector protein NleF that is produced by pathogenic E.coli; this inhibits apoptosis.
Anti-Caspase-8-http://www.stjohnslabs.com/caspase-8-antibody-p-99045
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Immunohistochemistry Antibody Validation Report for Anti-Gamma Tubulin Antibo...St John's Laboratory Ltd
Tubulin is the major constituent of microtubules. The gamma chain is found at microtubule organizing centers (MTOC) such as the spindle poles or the centrosome. Pericentriolar matrix component that regulates alpha/beta chain minus-end nucleation, centrosome duplication and spindle formation.
Anti-Gamma Tubulin-http://www.stjohnslabs.com/gamma-tubulin-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Immunohistochemistry Antibody Validation Report for Anti-Epsilon Tubulin Anti...
Immunohistochemistry Antibody Validation Report for Anti-Epsilon Tubulin Anti...St John's Laboratory Ltd
Tubulin in molecular biology can refer either to the tubulin protein superfamily of globular proteins, or one of the member proteins of that superfamily. α- and β-tubulins polymerize into microtubules, a major component of the eukaryotic cytoskeleton. Microtubules function in many essential cellular processes, including mitosis. Tubulin-binding drugs kill cancerous cells by inhibiting microtubule dynamics, which are required for DNA segregation and therefore cell division. In eukaryotes there are six members of the tubulin superfamily, although not all are present in all species (see below). Both α and β tubulins have a mass of around 50 kDa and are thus in a similar range compared to actin with ~42 kDa. In contrast, tubulin polymers (microtubules) tend to be much bigger than actin filaments due to their cylindrical nature. Tubulin was long thought to be specific to eukaryotes. More recently, however, several prokaryotic proteins have been shown to be related to tubulin.
Anti-Epsilon Tubulin -http://www.stjohnslabs.com/epsilon-tubulin-antibody-2
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-Luciferase Antibody ...
Immunohistochemistry Antibody Validation Report for Anti-Luciferase Antibody ...St John's Laboratory Ltd
Produces green light with a wavelength of 562 nm. / Photinus luciferin + O2 + ATP = oxidized Photinus luciferin + CO2 + AMP + diphosphate + light.
Anti-Luciferase -http://www.stjohnslabs.com/luciferase-antibody-2
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-LC3A Antibody (STJ97...
Immunohistochemistry Antibody Validation Report for Anti-LC3A Antibody (STJ97...St John's Laboratory Ltd
Ubiquitin-like modifier involved in formation of autophagosomal vacuoles (autophagosomes) . Whereas LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is essential for a later stage in autophagosome maturation .
Anti-LC3A-http://www.stjohnslabs.com/lc3a-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-CHOP Antibody (STJ97...
Immunohistochemistry Antibody Validation Report for Anti-CHOP Antibody (STJ97...St John's Laboratory Ltd
Multifunctional transcription factor in ER stress response. Plays an essential role in the response to a wide variety of cell stresses and induces cell cycle arrest and apoptosis in response to ER stress. Plays a dual role both as an inhibitor of CCAAT/enhancer-binding protein (C/EBP) function and as an activator of other genes. Acts as a dominant-negative regulator of C/EBP-induced transcription: dimerizes with members of the C/EBP family, impairs their association with C/EBP binding sites in the promoter regions, and inhibits the expression of C/EBP regulated genes. Positively regulates the transcription of TRIB3, IL6, IL8, IL23, TNFRSF10B/DR5, PPP1R15A/GADD34, BBC3/PUMA, BCL2L11/BIM and ERO1L. Negatively regulates; expression of BCL2 and MYOD1, ATF4-dependent transcriptional activation of asparagine synthetase (ASNS), CEBPA-dependent transcriptional activation of hepcidin (HAMP) and CEBPB-mediated expression of peroxisome proliferator-activated receptor gamma (PPARG).
Anti-CHOP-http://www.stjohnslabs.com/chop-antibody-2
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-phospho-MLKL (S358) ...
Immunohistochemistry Antibody Validation Report for Anti-phospho-MLKL (S358) ...St John's Laboratory Ltd
Pseudokinase that plays a key role in TNF-induced necroptosis, a programmed cell death process. Activated following phosphorylation by RIPK3, leading to homotrimerization, localization to the plasma membrane and execution of programmed necrosis characterized by calcium influx and plasma membrane damage. Does not have protein kinase activity.
Anti-phospho-MLKL (S358)-http://www.stjohnslabs.com/phospho-mlkl-s358-antibody-1
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-ERK1 Antibody (STJ97...
Immunohistochemistry Antibody Validation Report for Anti-ERK1 Antibody (STJ97...St John's Laboratory Ltd
Serine/threonine kinase which acts as an essential component of the MAP kinase signal transduction pathway. MAPK1/ERK2 and MAPK3/ERK1 are the 2 MAPKs which play an important role in the MAPK/ERK cascade. They participate also in a signaling cascade initiated by activated KIT and KITLG/SCF. Depending on the cellular context, the MAPK/ERK cascade mediates diverse biological functions such as cell growth, adhesion, survival and differentiation through the regulation of transcription, translation, cytoskeletal rearrangements. The MAPK/ERK cascade plays also a role in initiation and regulation of meiosis, mitosis, and postmitotic functions in differentiated cells by phosphorylating a number of transcription factors. About 160 substrates have already been discovered for ERKs. Many of these substrates are localized in the nucleus, and seem to participate in the regulation of transcription upon stimulation.
Anti-ERK1-http://www.stjohnslabs.com/erk1-antibody-3
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validation
Immunohistochemistry Antibody Validation Report for Anti-PDGFRα Antibody (STJ...
Immunohistochemistry Antibody Validation Report for Anti-PDGFRα Antibody (STJ...St John's Laboratory Ltd
Tyrosine-protein kinase that acts as a cell-surface receptor for PDGFA, PDGFB and PDGFC and plays an essential role in the regulation of embryonic development, cell proliferation, survival and chemotaxis. Depending on the context, promotes or inhibits cell proliferation and cell migration. Plays an important role in the differentiation of bone marrow-derived mesenchymal stem cells. Required for normal skeleton development and cephalic closure during embryonic development. Required for normal development of the mucosa lining the gastrointestinal tract, and for recruitment of mesenchymal cells and normal development of intestinal villi. Plays a role in cell migration and chemotaxis in wound healing. Plays a role in platelet activation, secretion of agonists from platelet granules, and in thrombin-induced platelet aggregation.
Anti-PDGFRα-http://www.stjohnslabs.com/pdgfra-antibody-2
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-Caspase-1 Antibody (...
Immunohistochemistry Antibody Validation Report for Anti-Caspase-1 Antibody (...St John's Laboratory Ltd
Thiol protease that cleaves IL-1 beta between an Asp and an Ala, releasing the mature cytokine which is involved in a variety of inflammatory processes. Important for defense against pathogens. Cleaves and activates sterol regulatory element binding proteins (SREBPs). Can also promote apoptosis. / Strict requirement for an Asp residue at position P1 and has a preferred cleavage sequence of Tyr-Val-Ala-Asp-|-. / Specifically inhibited by the cowpox virus Crma protein.
Anti-Caspase-1-http://www.stjohnslabs.com/caspase-1-antibody-1
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-Amyloid-β Antibody (...
Immunohistochemistry Antibody Validation Report for Anti-Amyloid-β Antibody (...St John's Laboratory Ltd
Functions as a cell surface receptor and performs physiological functions on the surface of neurons relevant to neurite growth, neuronal adhesion and axonogenesis. Involved in cell mobility and transcription regulation through protein-protein interactions. Can promote transcription activation through binding to APBB1-KAT5 and inhibits Notch signaling through interaction with Numb. Couples to apoptosis-inducing pathways such as those mediated by G(O) and JIP. Inhibits G(o) alpha ATPase activity (By similarity). Acts as a kinesin I membrane receptor, mediating the axonal transport of beta-secretase and presenilin 1. Involved in copper homeostasis/oxidative stress through copper ion reduction. In vitro, copper-metallated APP induces neuronal death directly or is potentiated through Cu2+-mediated low-density lipoprotein oxidation.
Anti-Amyloid-β-http://www.stjohnslabs.com/amyloid-v-antibody
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-Bcl-2 Antibody (STJ9...
Immunohistochemistry Antibody Validation Report for Anti-Bcl-2 Antibody (STJ9...St John's Laboratory Ltd
Suppresses apoptosis in a variety of cell systems including factor-dependent lymphohematopoietic and neural cells. Regulates cell death by controlling the mitochondrial membrane permeability. Appears to function in a feedback loop system with caspases. Inhibits caspase activity either by preventing the release of cytochrome c from the mitochondria and/or by binding to the apoptosis-activating factor (APAF-1). May attenuate inflammation by impairing NLRP1-inflammasome activation, hence CASP1 activation and IL1B release .
Anti-Bcl-2-http://www.stjohnslabs.com/bcl-2-antibody-1
Join our Antibody Validation Project - http://www.stjohnslabs.com/services/antibody-validationImmunohistochemistry Antibody Validation Report for Anti-α-SMA Antibody (STJ9...
Immunohistochemistry Antibody Validation Report for Anti-α-SMA Antibody (STJ9...St John's Laboratory Ltd
Alpha-actin-2 also known as actin, aortic smooth muscle or alpha smooth muscle actin (α-SMA, SMactin, alpha-SM-actin, ASMA) is a protein that in humans is encoded by the ACTA2 gene located on 10q22-q24. Actin alpha 2, the human aortic smooth muscle actin gene, is one of six different actin isoforms which have been identified. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus. Alpha-smooth muscle actin (α-SMA) is commonly used as a marker of myofibroblast formation.
Anti-α-SMA -http://www.stjohnslabs.com/a-sma-antibody-1
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Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
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Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
RNA INTERFERENCE: UNRAVELING GENETIC SILENCING
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
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MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
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MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
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Customer Review For HPT Monoclonal Antibody (STJ10181)
- 1. HOW DID OUR ANTIBODY PERFORM? CUSTOMER REVIEW: HPT Monoclonal Antibody (STJ10181)
- 2. WHAT WAS THE PROTOCOL? Primary antibody: Product Catalog No: STJ10181. HPT monoclonal antibody Provider: St John's Laboratory Dilution ratio: 1:1000 Method for validation: Western blot Incubation time: 1 hour
- 3. WHAT DID THE CUSTOMER THINK? Testing results were provided by a researcher at IPB Protein Recognition and Degradation. They stated that “This product did give conclusive results.”
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- 5. Contact Us: info@stjohnslabs.com 1. Choose 5 Trial Size Samples from our free sample list 2. Complete the free sample application: http://www.stjohnslabs.com/free-sample 3. Receive your antibody 4. Submit your review 5. Receive your 30% off your next order Get Your Free Samples in 5 Easy Steps
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