<prompt> Sulphur containing amino acid isareAspartic acidGlutamineMethionineGlycine  <response>: Based on the chemical structure of side chain R, amino acids are classified into:-1 Aliphatic amino acids:- Alanine, glycine, isoleucine, leucine, valine. 2 Hydroxy amino acids:- Serine, threonine, tyrosine.3 Sulfur containing amino acids:- Cysteine, methionine.4 Dicarboxylic amino acids:- Aspartic acid aspartate, glutamic acid glutamate.5 Amide containing amino acids:- Glutamine, asparagine these are amides of dicarboxylic amino acids.Glutamine is amide of glutamic acid and asparagine is amide of aspartic acid. 6 Aromatic amino acids:- Phenylalanine, tyrosine, tryptophan.7 Amino acids or heterocyclic amino acids: - One of the 20 amino acids, proline is an amino - NH acid, not an amino -NH2 acid, as are other 19. 