20 Essential Amino Acids
Alanine
Non-polar Neutral 3 Letter Code: Ala 1 Letter Code: A
Glycine
Non-polar Neutral 3 Letter Code: Gly 1 Letter Code: G
Isoleucine
Non-polar Neutral 3 Letter Code: Ile 1 Letter Code: I
Leucine
Non-polar Neutral 3 Letter Code: Leu 1 Letter Code: L
Methionine
Non-polar Neutral 3 Letter Code: Met 1 Letter Code: M
Phenylalanine
Non-polar Neutral 3 Letter Code: Phe 1 Letter Code: F
Proline
Non-polar Neutral 3 Letter Code: Pro 1 Letter Code: P
Tryptophan
Non-polar Neutral 3 Letter Code: Trp 1 Letter Code: F
Valine
Non-polar Neutral 3 Letter Code: Val 1 Letter Code: V
Aspartate
Polar Acidic 3 Letter Code: Asp 1 Letter Code: D
Glutamate
Polar Acidic 3 Letter Code: Glu 1 Letter Code: E
Arginine
Polar Basic 3 Letter Code: Arg 1 Letter Code: R
Histidine
Polar Basic 3 Letter Code: His 1 Letter Code: H
Lysine
Polar Basic 3 Letter Code: Lys 1 Letter Code: K
Asparagine
Polar Neutral 3 Letter Code: Asn 1 Letter Code: N
Cysteine
Polar Neutral 3 Letter Code: Cys 1 Letter Code: C
Glutamine
Polar Neutral 3 Letter Code: Gln 1 Letter Code: Q
Serine
Polar Neutral 3 Letter Code: Ser 1 Letter Code: S
Threonine
Polar Neutral 3 Letter Code: Thr 1 Letter Code: T
Tyrosine
Polar Neutral 3 Letter Code: Tyr 1 Letter Code: Y