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Families of membrane proteins
•Single- and multi-pass transmembrane proteins
Families of membrane proteins
       •Single- and multi-pass transmembrane proteins
       •Peripheral membrane proteins




Membrane
Associated
Families of membrane proteins
       •Single- and multi-pass transmembrane proteins
       •Peripheral membrane proteins
       •Lipid-anchored (Farnesylated, prenylated, etc.)




Membrane
Associated
                         Membrane
                          Targeted
Families of membrane proteins
                     •Single- and multi-pass transmembrane proteins
                     •Peripheral membrane proteins
                     •Lipid-anchored (Farnesylated, prenylated, etc.)




              Membrane
              Associated
                                       Membrane
                                        Targeted
    ??
Cytoplasmic
Assays for membrane proteins
•Overexpressed recombinant catalytic fragments
•Assay in solution; Highly disordered
Assays for membrane proteins
• All cellular proteins present (complex)
       • Biologically relevant context
• Laborious, slow, costly
Assays for membrane proteins




Is there an assay system that:
       •Is simple to use?
    •Compatible with HTS?
•Imparts the organization and
     context of a biological
          membrane?
           YES!
Assays for membrane proteins
Template Directed Assembly




                      +




His-tagged Proteins
Template Directed Assembly
•HIS-tagged proteins adhere to fully fluid surface
•Surface dictates biological organization:
      •topology and conformation
      •relationship to other subunits
Template Directed Assembly
•HIS-tagged proteins adhere to fully fluid surface
•Surface dictates biological organization:
      •topology and conformation
      •relationship to other subunits
•Promotes self-assembly:
      •homo- and hetero- multimers




                                    Fluid surface




                                    Functional
                                      Assay
Template Directed Assembly
•HIS-tagged proteins adhere to fully fluid surface
•Surface dictates biological organization:
      •topology and conformation
      •relationship to other subunits
•Promotes self-assembly:
      •homo- and hetero- multimers
      •higher-order complexes




                                    Fluid surface




                                    Functional
                                      Assay
Functional dimerization of Insulin RTK
           •Insulin receptor is normally activated through
           addition of high levels of manganese
           •HIS-tagged InR intracellular domain presented in
           context of TDA 2.0™ dimerizes and trans-
           phosphorylates in normal salt and Mn++




                     P-       -P P-         -P




Template
                          “First-Step”
Functional dimerization of Insulin RTK
           •Insulin receptor is normally activated through
           addition of high levels of manganese
           •HIS-tagged InR intracellular domain presented in
           context of TDA 2.0™ dimerizes and trans-
           phosphorylates in normal salt and Mn++




                     P-       -P
                                       7-fold increase in
                                       activity towards
                                     IRS1-derived peptide
                                           substrate!



Template                  Template
TDA 2.0™ affect on other membrane kinases




200   100   50    25     10   5   1
             [Enzyme] (nM)
Membrane context confers altered,
                             relevant, substrate selectivity
                             •TrkB was assayed against a random peptide
                             library in the absence and presence of TDA 2.0™
                             • Substrate selection was remarkably different
                             • Known substrates were only found in the
                             presence of TDA 2.0™




                        Y1173 EGFR
                                Y939 IRS1
Y987 IRS1   Y612 IRS1
Assembly of multi-component complexes
                                •Significant literature suggesting that “accessory”
                                proteins greatly affect enzyme pharmacology
                                • TDA 2.0™ offers a simple way to assess enzyme
                                activity in the proper context




Insulin/IGF-1 Receptor   EGF Receptor                 EGF/Her2
Assembly of multi-component complexes
                                •Significant literature suggesting that “accessory”
                                proteins greatly affect enzyme pharmacology
                                • TDA 2.0™ offers a simple way to assess enzyme
                                activity in the proper context




Insulin/IGF-1 Receptor   EGF Receptor                 EGF/Her2
Assembly of multi-component complexes
                                •Significant literature suggesting that “accessory”
                                proteins greatly affect enzyme pharmacology
                                • TDA 2.0™ offers a simple way to assess enzyme
                                activity in the proper context




Insulin/IGF-1 Receptor   EGF Receptor                 EGF/Her2
Assembly of multi-component complexes
                                             •Activation of Akt by mTOR and PDK1 on TDA 2.0™




                                                        pmol Phosphate Added
               1 2 3 4 5 6 7 8 9 10

      mTOR                            Anti-GST

       PDK1
        Akt1                          Anti-HIS


Phospho-Akt1                          Anti-Akt p-S473
                                                      TDA 2.0™                 -   +   -   -   -   +   -   +   -   +
                                                        Akt1                   +   +   -   -   +   +   +   +   +   +
Phospho-Akt1                          Anti-Akt p-T308   PDK1                   -   -   +   -   +   +   -   -   +   +
                                                       mTOR                    -   -   -   +   -   -   +   +   +   +
Want TDA 2.0™ in your lab?



                                                           TDA my way!
    Our SmartScreen™ kits contain pre-     Our field applications scientific team (FAST)
validated enzymes optimized with TDA 2.0™ can help implement TDA 2.0™ technology in
                                           your lab, or develop a customized assay to
                                                      suit your application!




        www.blueskybiotech.com
      products@blueskybiotech.com

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Smart screen animations_Blue Sky Biotech

  • 1.
  • 2. Families of membrane proteins •Single- and multi-pass transmembrane proteins
  • 3. Families of membrane proteins •Single- and multi-pass transmembrane proteins •Peripheral membrane proteins Membrane Associated
  • 4. Families of membrane proteins •Single- and multi-pass transmembrane proteins •Peripheral membrane proteins •Lipid-anchored (Farnesylated, prenylated, etc.) Membrane Associated Membrane Targeted
  • 5. Families of membrane proteins •Single- and multi-pass transmembrane proteins •Peripheral membrane proteins •Lipid-anchored (Farnesylated, prenylated, etc.) Membrane Associated Membrane Targeted ?? Cytoplasmic
  • 6. Assays for membrane proteins •Overexpressed recombinant catalytic fragments •Assay in solution; Highly disordered
  • 7. Assays for membrane proteins • All cellular proteins present (complex) • Biologically relevant context • Laborious, slow, costly
  • 8. Assays for membrane proteins Is there an assay system that: •Is simple to use? •Compatible with HTS? •Imparts the organization and context of a biological membrane? YES!
  • 10. Template Directed Assembly + His-tagged Proteins
  • 11. Template Directed Assembly •HIS-tagged proteins adhere to fully fluid surface •Surface dictates biological organization: •topology and conformation •relationship to other subunits
  • 12. Template Directed Assembly •HIS-tagged proteins adhere to fully fluid surface •Surface dictates biological organization: •topology and conformation •relationship to other subunits •Promotes self-assembly: •homo- and hetero- multimers Fluid surface Functional Assay
  • 13. Template Directed Assembly •HIS-tagged proteins adhere to fully fluid surface •Surface dictates biological organization: •topology and conformation •relationship to other subunits •Promotes self-assembly: •homo- and hetero- multimers •higher-order complexes Fluid surface Functional Assay
  • 14. Functional dimerization of Insulin RTK •Insulin receptor is normally activated through addition of high levels of manganese •HIS-tagged InR intracellular domain presented in context of TDA 2.0™ dimerizes and trans- phosphorylates in normal salt and Mn++ P- -P P- -P Template “First-Step”
  • 15. Functional dimerization of Insulin RTK •Insulin receptor is normally activated through addition of high levels of manganese •HIS-tagged InR intracellular domain presented in context of TDA 2.0™ dimerizes and trans- phosphorylates in normal salt and Mn++ P- -P 7-fold increase in activity towards IRS1-derived peptide substrate! Template Template
  • 16. TDA 2.0™ affect on other membrane kinases 200 100 50 25 10 5 1 [Enzyme] (nM)
  • 17. Membrane context confers altered, relevant, substrate selectivity •TrkB was assayed against a random peptide library in the absence and presence of TDA 2.0™ • Substrate selection was remarkably different • Known substrates were only found in the presence of TDA 2.0™ Y1173 EGFR Y939 IRS1 Y987 IRS1 Y612 IRS1
  • 18. Assembly of multi-component complexes •Significant literature suggesting that “accessory” proteins greatly affect enzyme pharmacology • TDA 2.0™ offers a simple way to assess enzyme activity in the proper context Insulin/IGF-1 Receptor EGF Receptor EGF/Her2
  • 19. Assembly of multi-component complexes •Significant literature suggesting that “accessory” proteins greatly affect enzyme pharmacology • TDA 2.0™ offers a simple way to assess enzyme activity in the proper context Insulin/IGF-1 Receptor EGF Receptor EGF/Her2
  • 20. Assembly of multi-component complexes •Significant literature suggesting that “accessory” proteins greatly affect enzyme pharmacology • TDA 2.0™ offers a simple way to assess enzyme activity in the proper context Insulin/IGF-1 Receptor EGF Receptor EGF/Her2
  • 21. Assembly of multi-component complexes •Activation of Akt by mTOR and PDK1 on TDA 2.0™ pmol Phosphate Added 1 2 3 4 5 6 7 8 9 10 mTOR Anti-GST PDK1 Akt1 Anti-HIS Phospho-Akt1 Anti-Akt p-S473 TDA 2.0™ - + - - - + - + - + Akt1 + + - - + + + + + + Phospho-Akt1 Anti-Akt p-T308 PDK1 - - + - + + - - + + mTOR - - - + - - + + + +
  • 22. Want TDA 2.0™ in your lab? TDA my way! Our SmartScreen™ kits contain pre- Our field applications scientific team (FAST) validated enzymes optimized with TDA 2.0™ can help implement TDA 2.0™ technology in your lab, or develop a customized assay to suit your application! www.blueskybiotech.com products@blueskybiotech.com