Structure of Proteins a carbon atom H.N-CH-C-OH a-amino group R -side chain an a-amino acid H2N-CH-C-OH H2N-CH-C-OH HN-CH- OH HN-CH-C-OHHN-CH-C-OH CH,OH H CH2SH CH(CH3)2 alanine serine glycine cysteine valine several individual amino acids peptide bonds -NH-CH一C-NH- CH-CNHCH- NH-CH- NH- CH- CH3 CHOH H CH,SH CH(CH3) a short section of a protein Copyright2005 Pearson Prentice Hall,Inc. Chapter 24 3Chapter 24 3 Structure of Proteins =>