- Created by: monicaraviraj
- Created on: 28-10-18 19:59
sequence of amino acids in a polypeptide chain
hydrogen bonds between amino acids cause chain to coil to form a 3D shape called a alpha helix or a beta pleated sheet.
alpha helix is coiled further often to give a more specific 3D shape.
Disulphide bridges - strong covalent bonds so hard to break
Ionic bonds - between amino group and carboxyl group - weaker than disulfide bridges and easily broken by pH changes.
Hydrogen Bonds - numerous but easily broken
many polypetide chains linked together in various ways.
Can be prosthetic - non protein