ALL LECTURES
Introduction
Molecular Architecture I
D
CONCEPTS IN THIS LECTURE
Molecular Architecture I
Polypeptide Chain
Amino Acids
Degrees of Freedom
Reverse Turns
The Alpha Helix
The Beta Sheet
2. Molecular Architecture I
2.1. Polypeptide Chain
2.2. Amino Acids
SB228 Lecture 2 Lecture2
Lecture 2 Contents
Polypeptide Chain. Concept 2.1
The Polypeptide Chain
Chemical Structure
The Peptide Group
Amino Acids. Concept 2.2
Amino Acids
Amino Acid Side Chains
Amino Acid Names
Amino Acid Classification 1
Amino Acids Gly and Pro
Amino Acids Cys
Amino Acids Leu and Phe
Amino Acids Glu and Arg
Amino Acids Val and Ile
Amino Acid Classification 2
2.3. Degrees of Freedom
2.4. Reverse Turns
Degrees of Freedom. Concept 2.3
Degrees of Freedom
Backbone Degrees of Freedom
Steric Clashes Limit Phi, Psi
Ramachandran Diagram
Different Backbone Conformations
Contour Plots
Phi, Psi Distributions A, G, P, N
Phi, Psi Distributions A, M, F, V
Side Chain Conformations
Reverse Turns. Concept 2.4
Reverse Turns
Beta Turns
Virtual Bonds
Beta Turn Types
2.5. The Alpha Helix
2.6. The Beta Sheet
The Alpha Helix. Concept 2.5
The Alpha-Helix
Proteins Have Helices
The Alpha Heli
The Helix Surface
Helix Surface Ridges
Helix Ridge Lines
Different Possible Helices
310 Explained
Alpha-Helix Dipole 1
Alpha-Helix Dipole 2
The Beta Sheet. Concept 2.6
Beta Sheets
Proteins Have Strands
The Beta Strand
Beta Sheet
Beta Sheets Are Solid
Beta-Sheet Sidedness
Real Sheets Are Twisted 1
Real Sheets Are Twisted 2
The Beta Hairpin