Amino Acids

Amino Acid
Triplet
Code
Single
Letter
Code
MW Abundance in
Proteins (%)
Features
Alanine Ala A   71.0 9.0 Ali
Arginine Arg R 157.2 4.7 Bas
Asparagine Asn N 114.1 4.4
Aspartic Acid Asp B 114.0 5.5 Acd
Cysteine Cys C 103.1 2.8 S-S
Glutamic Acid Glu E 128.1 6.2 Acd
Glutamine Gln Q 128.1 3.9  
Glycine Gly G   57.0 7.5  
Histidine His H 137.1 2.1 Bas
Isoleucine Ile I 113.1 4.6 Ali
Leucine Leu L 113.1 7.5 Ali
Lysine Lys K 129.1 7.0 Bas
Methionine Met M 131.1 1.7
Phenylanine Phe F 147.1 3.5 Ara
Proline Pro P   97.1 4.6 Cyc
Serine Ser S   87.0 7.1 Hydphl
Threonine Thr T 101.1 6.0 Hydphl
Tryptophan Trp W 186.2 1.1 Ara
Tyrosine Tyr Y 163.1 3.5 Phn
Valine Val V   99.1 6.9 Ali
Bas = Basic, Acd = Acidic, S-S = disulfide bonds Ara = Aromatic, Ali = Aliphatic, Hydphl = Hydrophilic, Cyc = cyclic

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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