2009—2010

81817 Introduction to Protein Structure and Function

Lecturer: Ora Schueler-Furman

oraf@ekmd.huji.ac.il 87094

Teaching assistants: Sivan Pearl and Miriam Oxsman

            sivan.pearl@mail.huji.ac.il  85471 ; miriam.oxsman@mail.huji.ac.il 88337

 

 

 

 

 

Date

Lecture

Exercise

 

 

Introduction to protein structure

 

1

19.10

·       The chemical nature of polypeptides

·       Forces that determine protein structure

Ex1a:

·       databases (sw; pdb)

·       DEEPVIEW1

2

26.10

 

Structural properties of proteins 

·       Secondary structure elements

·       Classification of tertiary structure; Protein families

·       Databases of protein families (continued in last exercise of course)

Ex1b: DEEPVIEW2 – HLA example

 

 

Sequence → structure

 

3

2.11

 

·       Determinants of secondary structure: context or propensity?

Analysis of structural determinants:

·       Anfinsen’s principle

Ex2: helices & sheets

4

9.11

·       Conservation of structure during evolution (globins)

·       Experimental evaluation of structural stability (T4 lysozyme and others)

Ex3: Evolutionary conservation of protein structure: the hemoglobin family

5

16.11

 

Protein Folding

·       Theory and experimental analysis

Ex4: Sensitivity to mutations: T4 lysozyme

 

 

Protein structure prediction

 

6

23.11

 

Protein structure prediction

·       Introduction

·       Comparative modeling

Ex5: Comparative modeling (swissmodel)

7

30.11

·       Secondary structure prediction

·       Fold recognition (threading)

Ex6: Secondary structure prediction

8

7.12

·       Ab initio modeling

·       Casp

·       Structural Genomics

Ex7: Fold recognition

 

 

 

Structure  → function

 

9

14.12

 

Protein design

·       Paracelsus challenge

·       Switches (calmodulin)

·       New proteins: top7

·       New enzymes: enzyme design

Ex8: Adaptation to extremes

 

10

21.12

 

The structural basis of protein function

·       Evolution of new functions; Moonlighting

·       Prediction of function

Ex9: The structural basis of function

** Databases: EC numbers

 

 

Protein-DNA interactions

 

11

28.12

 

Structural motifs in regulatory proteins: DNA-protein interactions (1)

·        DNA structure

·        Principles of protein - DNA recognition

 

Ex10: DNA; Zn Finger

12

4.1

 

Structural motifs in regulatory proteins: DNA-protein interactions cont.(2)

·       Zinc finger motif

·       Helix Turn Helix motif

·       Basic Leucine Zipper motif

Ex11: HTH; Bzip

 

13

11.1

 

Structural motifs in regulatory proteins: DNA-protein interactions cont. (3)

Ex12: Protein Families

Databases of protein families (scop cath) (additions to lecture 2 – rounding up of course)

14

18.1

Summary Lecture

Summary exercise