Amino Acid Properties

Amino-Acid Name 3-Letter Code 1-Letter Code Structure Properties
Alanine Ala A Ala Non-polar, aliphatic residues
Arginine Arg R Arg Positively charged (basic amino acids; non-acidic amino acids); Polar; Hydrophilic; pK=12.5
Asparagine Asn N Asn Polar, non-charged
Aspartate Asp D Asp Negatively charged (acidic amino acids); Polar; Hydrophilic; pK=3.9
Cysteine Cys C Cys Polar, non-charged
Glutamate Glu E Glu Negatively charged (acidic amino acids); Polar; Hydrophilic; pK=4.2
Glutamine Gln Q Gln Polar, non-charged
Glycine Gly G Gly Non-polar, aliphatic residues
Histidine His H His Positively charged (basic amino acids; non-acidic amino acids); Polar; Hydrophilic; pK=6.0
Isoleucine Ile I Ile Non-polar, aliphatic residues
Leucine Leu L Leu Non-polar, aliphatic residues
Lysine Lys K  Lys Positively charged (basic amino acids; non-acidic amino acids); Polar; Hydrophilic; pK=10.5
Methionine Met M Met Polar, non-charged
Phenylalanine Phe F Phe Aromatic
Proline Pro P Pro Non-polar, aliphatic residues
Serine Ser S Ser Polar, non-charged
Threonine Thr T Thr Polar, non-charged
Tryptophan Trp W Trp Aromatic
Tyrosine Tyr Y Tyr Aromatic
Valine Val V Val Non-polar, aliphatic residues
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