Introduction to Protein Structure

Amino acid side chain: R

(*)glycine/gly/G = -H

alanine/ala/A = -CH3

valine/val/V = -CH-(CH3)2

leucine/leu/L = -CH2-CH-(CH3)2

isoleucine/ile/I = -CH-(CH3)(CH2)-CH2-CH3

(*)proline/pro/P = -CH2-CH2-CH2-

phenylalanine/phe/F = -CH2-C5H6

tyrosine/tyr/Y = -CH2-C5H5OH

tryptophan/trp/W = -CH2-C8H5NH

methionine/met/M = -CH2-CH2-S-CH3

histidine/his/H = -CH2-(C3H2(NH)2)