Chemical classification amino acids

1. By: Olla S. BaEissa
Chemical Classification
(A) Neutral amino acids (monoamine, monocarboxylic amino acids)
1) Neutral Aliphatic amino acids
I- with hydrocarbon side chain
Glycine , Alanine , Valine , Leucine , isoleucine
II- with specific groups
i- Sulfer group
Cysteine , Homocysteine , Methionine
ii- hydroxyl group
Serine , Homoserine , Threonine , Hydroxylysine
iii- carboxy amide group
Asparagine , Glutamine
2) Neutral Aromatic amino acids (phenyl/phenol ring)
Phenylalanine , Tyrosine
3) Neutral Heterocyclic amino acids
- Indole ring: Tryptophan
- Pyrrolidine ring: Proline & Hydroxyproline (Imino group)
(B) Basic amino acids (diamine, monocarboxylic amino acids)
> Aliphatic: Lysine , Arginine
> cyclic (imidazole): Histidine
(C) Acidic amino acids (monoamine, dicarboxylic amino acids)
- Aspartic acid: Aspartate
- Glutamic acid: Glutamate