TABLE 11.1 The twenty common amino acids found in most proteins
Amino acid Three-letter abbreviation One-letter abbreviation Amino acid Three-letter abbreviation One-letter abbreviation
Alanine Ala A Leucine Leu L
Arginine Arg R Lysine Lys K
Asparagine Asn N Methionine Met M
Aspartate Asp D Phenylalanine Phe F
Cysteine Cys C Proline Pro P
Glutamate Glu E Serine Ser S
Glutamine Gln Q Threonine Thr T
Glycine Gly G Tyrosine Tyr Y
Histidine His H Tryptophan Trp W
Isoleucine Ile I Valine Val V