Question

The length of an alpha-helix coThe length of an α-helix composed of 36 amino acid residues is mposed of 36 amino acid residues is

Answer 1

Answer:

Alpha-helices have 3.6 amino acid residues per turn, ie a helix 36 amino acids long would form 10 turns. The separation of residues along the helix axis is 5.4/3.6 or 1.5 Angstroms, ie the alpha-helix has a rise per residue of 1.5 Angstroms. Every mainchain C=O.