SlideShare a Scribd company logo
Active sites of enzyme
BY
AVINASH TIWARI
M. TECH, BIOTECHNOLOGY
2ND YEAR (3RD SEM.)
201710902010002
CONTENT
 Introduction
 Feature of the active site
 Structure
 Binding site
 Models for active site of enzyme
 Properties that Affect Binding
 Mechanism of catalytic site
INTRODUCTION
 Active sites of enzyme is
that point where, substrate
molecule bind for the
chemical reaction
 It is generally found on the
surface of enzyme and in
some enzyme it is a “Pit”
like structure
Active site
Feature of the active site
 The active site is a three-dimensional cleft formed by groups
that come from different parts of the amino acid sequence
 The active site takes up a relatively small part of the total
volume of an enzyme
 Active sites are clefts or crevices
 Substrates are bound to enzymes by multiple weak attractions.
 The specificity of binding depends on the precisely defined
arrangement of atoms in an active site.
STRUCTURE OF ENZYME
Enzyme (protein)
Scaffold-to
support
and
position
active site
Binding
site- bind
and orient
substrate(s)
Catalytic
site-reduce
chemical
activation
energy
Binding site
 Form the 4 type of bond with substrate
1. Electrostatic bond
2. Hydrogen bond
3. Van Der Waals forces
4. Non- covalent bond
Models for active site of enzyme
 Lock and key theory  Induced fit model
Properties that Affect Binding
 Complementarity
 Flexibility
 Surfaces
 Non-Covalent Forces
 Affinity
MECHANISM CATALYTIC SITE
Active site of enzyme

More Related Content

What's hot

Active site of an enzyme
Active site of an enzymeActive site of an enzyme
Active site of an enzyme
Namrata Chhabra
 
Lock and key model & induced fit model
Lock and key model & induced fit modelLock and key model & induced fit model
Lock and key model & induced fit model
UnnimayaVinod1
 
Classification and nomenclature of enzymes
Classification and nomenclature of enzymes Classification and nomenclature of enzymes
Classification and nomenclature of enzymes
UNIVERSITY OF SARGODHA
 
Mechanism of enzyme action
Mechanism of enzyme actionMechanism of enzyme action
Mechanism of enzyme action
Karthikeyan Pethusamy
 
Enzyme inhibition
Enzyme inhibitionEnzyme inhibition
Enzyme inhibition
ranjani n
 
Regulatory and allosteric enzymes and allostrerism
Regulatory and allosteric enzymes and allostrerismRegulatory and allosteric enzymes and allostrerism
Regulatory and allosteric enzymes and allostrerism
Ayetenew Abita Desa
 
Enzyme classification
Enzyme classificationEnzyme classification
Enzyme classification
Namrata Chhabra
 
Enzymes properties, nomenclature and classification
Enzymes   properties, nomenclature and classificationEnzymes   properties, nomenclature and classification
Enzymes properties, nomenclature and classification
JasmineJuliet
 
Methods of enzyme isolation and purification
Methods of enzyme isolation and purificationMethods of enzyme isolation and purification
Methods of enzyme isolation and purification
Akshay Wakte
 
Enzyme inhibition
Enzyme inhibitionEnzyme inhibition
Enzyme inhibition
JasmineJuliet
 
Enzyme substrate complex
Enzyme substrate complexEnzyme substrate complex
Enzyme substrate complex
adnan ali
 
Co enzymes
Co enzymesCo enzymes
Co enzymes
Pulkit Agarwal
 
Enzyme kinetics
Enzyme kineticsEnzyme kinetics
Enzyme kinetics
Kamal kumar ☁
 
Abzymes
AbzymesAbzymes
Abzymes
jeeva raj
 
Enzymes
EnzymesEnzymes
Pentose phosphate pathway,hmp shunt
Pentose phosphate pathway,hmp shuntPentose phosphate pathway,hmp shunt
Pentose phosphate pathway,hmp shunt
Sijo A
 
Allosteric enzymes
Allosteric enzymesAllosteric enzymes
Allosteric enzymes
Rachana Tiwari
 
Sequencing of protein
Sequencing of proteinSequencing of protein
Sequencing of protein
Arunima Sur
 
Regulation of enzyme activity
Regulation of enzyme activityRegulation of enzyme activity
Regulation of enzyme activity
Ronnie Z. Valenciano
 
Glyoxylate cycle
Glyoxylate cycleGlyoxylate cycle
Glyoxylate cycle
Swati Pawar
 

What's hot (20)

Active site of an enzyme
Active site of an enzymeActive site of an enzyme
Active site of an enzyme
 
Lock and key model & induced fit model
Lock and key model & induced fit modelLock and key model & induced fit model
Lock and key model & induced fit model
 
Classification and nomenclature of enzymes
Classification and nomenclature of enzymes Classification and nomenclature of enzymes
Classification and nomenclature of enzymes
 
Mechanism of enzyme action
Mechanism of enzyme actionMechanism of enzyme action
Mechanism of enzyme action
 
Enzyme inhibition
Enzyme inhibitionEnzyme inhibition
Enzyme inhibition
 
Regulatory and allosteric enzymes and allostrerism
Regulatory and allosteric enzymes and allostrerismRegulatory and allosteric enzymes and allostrerism
Regulatory and allosteric enzymes and allostrerism
 
Enzyme classification
Enzyme classificationEnzyme classification
Enzyme classification
 
Enzymes properties, nomenclature and classification
Enzymes   properties, nomenclature and classificationEnzymes   properties, nomenclature and classification
Enzymes properties, nomenclature and classification
 
Methods of enzyme isolation and purification
Methods of enzyme isolation and purificationMethods of enzyme isolation and purification
Methods of enzyme isolation and purification
 
Enzyme inhibition
Enzyme inhibitionEnzyme inhibition
Enzyme inhibition
 
Enzyme substrate complex
Enzyme substrate complexEnzyme substrate complex
Enzyme substrate complex
 
Co enzymes
Co enzymesCo enzymes
Co enzymes
 
Enzyme kinetics
Enzyme kineticsEnzyme kinetics
Enzyme kinetics
 
Abzymes
AbzymesAbzymes
Abzymes
 
Enzymes
EnzymesEnzymes
Enzymes
 
Pentose phosphate pathway,hmp shunt
Pentose phosphate pathway,hmp shuntPentose phosphate pathway,hmp shunt
Pentose phosphate pathway,hmp shunt
 
Allosteric enzymes
Allosteric enzymesAllosteric enzymes
Allosteric enzymes
 
Sequencing of protein
Sequencing of proteinSequencing of protein
Sequencing of protein
 
Regulation of enzyme activity
Regulation of enzyme activityRegulation of enzyme activity
Regulation of enzyme activity
 
Glyoxylate cycle
Glyoxylate cycleGlyoxylate cycle
Glyoxylate cycle
 

Similar to Active site of enzyme

Biochemistry 304 2014 student edition enzymes and enzyme kinetics
Biochemistry 304 2014 student edition enzymes and enzyme kineticsBiochemistry 304 2014 student edition enzymes and enzyme kinetics
Biochemistry 304 2014 student edition enzymes and enzyme kinetics
martyynyyte
 
ACTIVE SITE of an enzyme
ACTIVE SITE of an enzymeACTIVE SITE of an enzyme
ACTIVE SITE of an enzyme
Vandana Yadav03
 
Enzymes notes, enzyme chapter
Enzymes notes, enzyme chapterEnzymes notes, enzyme chapter
Enzymes notes, enzyme chapter
sandeep chandakavate
 
1s.ENZYMES.pptx
1s.ENZYMES.pptx1s.ENZYMES.pptx
1s.ENZYMES.pptx
ArtsonSiame
 
ENZYMES -enzymes biochemistry.slideshare.pptx
ENZYMES -enzymes biochemistry.slideshare.pptxENZYMES -enzymes biochemistry.slideshare.pptx
ENZYMES -enzymes biochemistry.slideshare.pptx
ABIDOFFICIALCHANNEL
 
Enzymes are proteins used for wide range of reaction.pptx
Enzymes are proteins used for wide range of reaction.pptxEnzymes are proteins used for wide range of reaction.pptx
Enzymes are proteins used for wide range of reaction.pptx
tekalignpawulose09
 
Enzymes msc
Enzymes msc Enzymes msc
Enzymes msc
RAHANAMOIDEENKOYAVK
 
02- Enzymes structure and function.pptx
02- Enzymes structure and function.pptx02- Enzymes structure and function.pptx
02- Enzymes structure and function.pptx
HagerAttiya1
 
Mechanisms action of enzymes
Mechanisms action of enzymesMechanisms action of enzymes
Mechanisms action of enzymes
Ghazwan Faisal
 
AS-U1-2.6 Enzyme action
AS-U1-2.6 Enzyme actionAS-U1-2.6 Enzyme action
AS-U1-2.6 Enzyme actionMiss Lavin
 
MAIN PPT- ENZYMES.pptx
MAIN PPT- ENZYMES.pptxMAIN PPT- ENZYMES.pptx
MAIN PPT- ENZYMES.pptx
ManoharKumar81
 
Enzyme unit 4 5
Enzyme unit 4  5Enzyme unit 4  5
Enzymes Lecture For First Year Medicine student
Enzymes Lecture For First Year Medicine studentEnzymes Lecture For First Year Medicine student
Enzymes Lecture For First Year Medicine student
Classof2023Medicine
 
A seminar on design of ligands for known
A seminar on design of ligands for knownA seminar on design of ligands for known
A seminar on design of ligands for knownshishirkawde
 
Immobilized enzyme
Immobilized enzymeImmobilized enzyme
Immobilized enzyme
bansalaman80
 
ENZYME - by rahil (ciu)
ENZYME - by rahil (ciu)ENZYME - by rahil (ciu)
ENZYME - by rahil (ciu)
sagarraj2003u
 
all about Enzymes 1234567891011121314.ppt
all about Enzymes 1234567891011121314.pptall about Enzymes 1234567891011121314.ppt
all about Enzymes 1234567891011121314.ppt
SehrishSarfraz2
 
Enzymes
EnzymesEnzymes

Similar to Active site of enzyme (20)

Biochemistry 304 2014 student edition enzymes and enzyme kinetics
Biochemistry 304 2014 student edition enzymes and enzyme kineticsBiochemistry 304 2014 student edition enzymes and enzyme kinetics
Biochemistry 304 2014 student edition enzymes and enzyme kinetics
 
ACTIVE SITE of an enzyme
ACTIVE SITE of an enzymeACTIVE SITE of an enzyme
ACTIVE SITE of an enzyme
 
Enzymes notes, enzyme chapter
Enzymes notes, enzyme chapterEnzymes notes, enzyme chapter
Enzymes notes, enzyme chapter
 
1s.ENZYMES.pptx
1s.ENZYMES.pptx1s.ENZYMES.pptx
1s.ENZYMES.pptx
 
ENZYMES -enzymes biochemistry.slideshare.pptx
ENZYMES -enzymes biochemistry.slideshare.pptxENZYMES -enzymes biochemistry.slideshare.pptx
ENZYMES -enzymes biochemistry.slideshare.pptx
 
Enzymes are proteins used for wide range of reaction.pptx
Enzymes are proteins used for wide range of reaction.pptxEnzymes are proteins used for wide range of reaction.pptx
Enzymes are proteins used for wide range of reaction.pptx
 
Enzymes msc
Enzymes msc Enzymes msc
Enzymes msc
 
02- Enzymes structure and function.pptx
02- Enzymes structure and function.pptx02- Enzymes structure and function.pptx
02- Enzymes structure and function.pptx
 
Mechanisms action of enzymes
Mechanisms action of enzymesMechanisms action of enzymes
Mechanisms action of enzymes
 
AS-U1-2.6 Enzyme action
AS-U1-2.6 Enzyme actionAS-U1-2.6 Enzyme action
AS-U1-2.6 Enzyme action
 
Enzymes
EnzymesEnzymes
Enzymes
 
MAIN PPT- ENZYMES.pptx
MAIN PPT- ENZYMES.pptxMAIN PPT- ENZYMES.pptx
MAIN PPT- ENZYMES.pptx
 
7.6 enzymes
7.6 enzymes7.6 enzymes
7.6 enzymes
 
Enzyme unit 4 5
Enzyme unit 4  5Enzyme unit 4  5
Enzyme unit 4 5
 
Enzymes Lecture For First Year Medicine student
Enzymes Lecture For First Year Medicine studentEnzymes Lecture For First Year Medicine student
Enzymes Lecture For First Year Medicine student
 
A seminar on design of ligands for known
A seminar on design of ligands for knownA seminar on design of ligands for known
A seminar on design of ligands for known
 
Immobilized enzyme
Immobilized enzymeImmobilized enzyme
Immobilized enzyme
 
ENZYME - by rahil (ciu)
ENZYME - by rahil (ciu)ENZYME - by rahil (ciu)
ENZYME - by rahil (ciu)
 
all about Enzymes 1234567891011121314.ppt
all about Enzymes 1234567891011121314.pptall about Enzymes 1234567891011121314.ppt
all about Enzymes 1234567891011121314.ppt
 
Enzymes
EnzymesEnzymes
Enzymes
 

More from avinash tiwari

Plant bioreactor
Plant bioreactorPlant bioreactor
Plant bioreactor
avinash tiwari
 
Transcription factor
Transcription factorTranscription factor
Transcription factor
avinash tiwari
 
Novel opportunities for computational biology and sociology in
Novel opportunities for computational biology and sociology inNovel opportunities for computational biology and sociology in
Novel opportunities for computational biology and sociology in
avinash tiwari
 
Dna replication
Dna  replicationDna  replication
Dna replication
avinash tiwari
 
Crispr cas:an advance and efficient tool for genome modification
Crispr cas:an advance and efficient tool for genome modificationCrispr cas:an advance and efficient tool for genome modification
Crispr cas:an advance and efficient tool for genome modification
avinash tiwari
 
Altered expression of the klf4 in colorectal cancers
Altered expression of the klf4 in colorectal cancersAltered expression of the klf4 in colorectal cancers
Altered expression of the klf4 in colorectal cancers
avinash tiwari
 
Microbial growth kinetcs
Microbial growth kinetcsMicrobial growth kinetcs
Microbial growth kinetcs
avinash tiwari
 

More from avinash tiwari (7)

Plant bioreactor
Plant bioreactorPlant bioreactor
Plant bioreactor
 
Transcription factor
Transcription factorTranscription factor
Transcription factor
 
Novel opportunities for computational biology and sociology in
Novel opportunities for computational biology and sociology inNovel opportunities for computational biology and sociology in
Novel opportunities for computational biology and sociology in
 
Dna replication
Dna  replicationDna  replication
Dna replication
 
Crispr cas:an advance and efficient tool for genome modification
Crispr cas:an advance and efficient tool for genome modificationCrispr cas:an advance and efficient tool for genome modification
Crispr cas:an advance and efficient tool for genome modification
 
Altered expression of the klf4 in colorectal cancers
Altered expression of the klf4 in colorectal cancersAltered expression of the klf4 in colorectal cancers
Altered expression of the klf4 in colorectal cancers
 
Microbial growth kinetcs
Microbial growth kinetcsMicrobial growth kinetcs
Microbial growth kinetcs
 

Recently uploaded

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
siemaillard
 
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCECLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
BhavyaRajput3
 
Template Jadual Bertugas Kelas (Boleh Edit)
Template Jadual Bertugas Kelas (Boleh Edit)Template Jadual Bertugas Kelas (Boleh Edit)
Template Jadual Bertugas Kelas (Boleh Edit)
rosedainty
 
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxStudents, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
EduSkills OECD
 
Palestine last event orientationfvgnh .pptx
Palestine last event orientationfvgnh .pptxPalestine last event orientationfvgnh .pptx
Palestine last event orientationfvgnh .pptx
RaedMohamed3
 
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
EugeneSaldivar
 
The French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free downloadThe French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free download
Vivekanand Anglo Vedic Academy
 
The geography of Taylor Swift - some ideas
The geography of Taylor Swift - some ideasThe geography of Taylor Swift - some ideas
The geography of Taylor Swift - some ideas
GeoBlogs
 
Fish and Chips - have they had their chips
Fish and Chips - have they had their chipsFish and Chips - have they had their chips
Fish and Chips - have they had their chips
GeoBlogs
 
Language Across the Curriculm LAC B.Ed.
Language Across the  Curriculm LAC B.Ed.Language Across the  Curriculm LAC B.Ed.
Language Across the Curriculm LAC B.Ed.
Atul Kumar Singh
 
Home assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdfHome assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdf
Tamralipta Mahavidyalaya
 
The approach at University of Liverpool.pptx
The approach at University of Liverpool.pptxThe approach at University of Liverpool.pptx
The approach at University of Liverpool.pptx
Jisc
 
The Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official PublicationThe Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official Publication
Delapenabediema
 
The Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdfThe Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdf
kaushalkr1407
 
The Art Pastor's Guide to Sabbath | Steve Thomason
The Art Pastor's Guide to Sabbath | Steve ThomasonThe Art Pastor's Guide to Sabbath | Steve Thomason
The Art Pastor's Guide to Sabbath | Steve Thomason
Steve Thomason
 
How to Break the cycle of negative Thoughts
How to Break the cycle of negative ThoughtsHow to Break the cycle of negative Thoughts
How to Break the cycle of negative Thoughts
Col Mukteshwar Prasad
 
Operation Blue Star - Saka Neela Tara
Operation Blue Star   -  Saka Neela TaraOperation Blue Star   -  Saka Neela Tara
Operation Blue Star - Saka Neela Tara
Balvir Singh
 
Unit 8 - Information and Communication Technology (Paper I).pdf
Unit 8 - Information and Communication Technology (Paper I).pdfUnit 8 - Information and Communication Technology (Paper I).pdf
Unit 8 - Information and Communication Technology (Paper I).pdf
Thiyagu K
 
Supporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptxSupporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptx
Jisc
 
How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
Jisc
 

Recently uploaded (20)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCECLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
 
Template Jadual Bertugas Kelas (Boleh Edit)
Template Jadual Bertugas Kelas (Boleh Edit)Template Jadual Bertugas Kelas (Boleh Edit)
Template Jadual Bertugas Kelas (Boleh Edit)
 
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxStudents, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
 
Palestine last event orientationfvgnh .pptx
Palestine last event orientationfvgnh .pptxPalestine last event orientationfvgnh .pptx
Palestine last event orientationfvgnh .pptx
 
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
 
The French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free downloadThe French Revolution Class 9 Study Material pdf free download
The French Revolution Class 9 Study Material pdf free download
 
The geography of Taylor Swift - some ideas
The geography of Taylor Swift - some ideasThe geography of Taylor Swift - some ideas
The geography of Taylor Swift - some ideas
 
Fish and Chips - have they had their chips
Fish and Chips - have they had their chipsFish and Chips - have they had their chips
Fish and Chips - have they had their chips
 
Language Across the Curriculm LAC B.Ed.
Language Across the  Curriculm LAC B.Ed.Language Across the  Curriculm LAC B.Ed.
Language Across the Curriculm LAC B.Ed.
 
Home assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdfHome assignment II on Spectroscopy 2024 Answers.pdf
Home assignment II on Spectroscopy 2024 Answers.pdf
 
The approach at University of Liverpool.pptx
The approach at University of Liverpool.pptxThe approach at University of Liverpool.pptx
The approach at University of Liverpool.pptx
 
The Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official PublicationThe Challenger.pdf DNHS Official Publication
The Challenger.pdf DNHS Official Publication
 
The Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdfThe Roman Empire A Historical Colossus.pdf
The Roman Empire A Historical Colossus.pdf
 
The Art Pastor's Guide to Sabbath | Steve Thomason
The Art Pastor's Guide to Sabbath | Steve ThomasonThe Art Pastor's Guide to Sabbath | Steve Thomason
The Art Pastor's Guide to Sabbath | Steve Thomason
 
How to Break the cycle of negative Thoughts
How to Break the cycle of negative ThoughtsHow to Break the cycle of negative Thoughts
How to Break the cycle of negative Thoughts
 
Operation Blue Star - Saka Neela Tara
Operation Blue Star   -  Saka Neela TaraOperation Blue Star   -  Saka Neela Tara
Operation Blue Star - Saka Neela Tara
 
Unit 8 - Information and Communication Technology (Paper I).pdf
Unit 8 - Information and Communication Technology (Paper I).pdfUnit 8 - Information and Communication Technology (Paper I).pdf
Unit 8 - Information and Communication Technology (Paper I).pdf
 
Supporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptxSupporting (UKRI) OA monographs at Salford.pptx
Supporting (UKRI) OA monographs at Salford.pptx
 
How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
 

Active site of enzyme

  • 1. Active sites of enzyme BY AVINASH TIWARI M. TECH, BIOTECHNOLOGY 2ND YEAR (3RD SEM.) 201710902010002
  • 2. CONTENT  Introduction  Feature of the active site  Structure  Binding site  Models for active site of enzyme  Properties that Affect Binding  Mechanism of catalytic site
  • 3. INTRODUCTION  Active sites of enzyme is that point where, substrate molecule bind for the chemical reaction  It is generally found on the surface of enzyme and in some enzyme it is a “Pit” like structure Active site
  • 4. Feature of the active site  The active site is a three-dimensional cleft formed by groups that come from different parts of the amino acid sequence  The active site takes up a relatively small part of the total volume of an enzyme  Active sites are clefts or crevices  Substrates are bound to enzymes by multiple weak attractions.  The specificity of binding depends on the precisely defined arrangement of atoms in an active site.
  • 5. STRUCTURE OF ENZYME Enzyme (protein) Scaffold-to support and position active site Binding site- bind and orient substrate(s) Catalytic site-reduce chemical activation energy
  • 6. Binding site  Form the 4 type of bond with substrate 1. Electrostatic bond 2. Hydrogen bond 3. Van Der Waals forces 4. Non- covalent bond
  • 7. Models for active site of enzyme  Lock and key theory  Induced fit model
  • 8. Properties that Affect Binding  Complementarity  Flexibility  Surfaces  Non-Covalent Forces  Affinity