Bio 350- Ch 4 (1).pptx Molecular Biology

basharahali 7 views 24 slides Mar 10, 2025
Slide 1
Slide 1 of 24
Slide 1
1
Slide 2
2
Slide 3
3
Slide 4
4
Slide 5
5
Slide 6
6
Slide 7
7
Slide 8
8
Slide 9
9
Slide 10
10
Slide 11
11
Slide 12
12
Slide 13
13
Slide 14
14
Slide 15
15
Slide 16
16
Slide 17
17
Slide 18
18
Slide 19
19
Slide 20
20
Slide 21
21
Slide 22
22
Slide 23
23
Slide 24
24

About This Presentation

Chapter 4 Protein Structure and Function


Slide Content

Ch. 4 Protein Structure and Function 1

Protein Folding 11

Denaturing & Renaturation 12 Other Factors?

Misfolded Proteins Neurodegenerative Disorders Alzheimer’s Huntington’s Prion diseases BSE in cattle Scrapie in Sheep Creutzfeldt-Jakob 13

Chaperone Proteins 14

Proteins come in a wide variety of complicated shapes 15

α helix & β-pleated sheet 16

4 Levels of Protein Structure 17

Extracellular Proteins are Often Stabilized by Covalent-Cross Linkages Disulfide bonds S-S Join 2 aa or 2 peptides Act as a molecular staple 18

How Proteins Work Binding Specificity Strength varies Ligand & Binding sites 19

Ligand Binding 20

Billions of Different Antibodies- Bind Antigen 21

Enzymes are Powerful & Highly Specific Catalysts 22

23

Lysozyme Illustrates How an Enzyme Works Enzyme Substrate Enzyme-substrate complex Enzyme-product complex Product 24
Tags