Classification of proteins based on chemical properties?
Depending on their chemical properties and optical activity, the amino acids in proteins are classified under the following heads:
1) Morzo anzino mono carboxylic acids: Examples include glycine, alanine, valine, leucine, isoleucine, serine and threonine.
2) Mono amino dicarboxylic acids: Examples include aspartic acid and glutamic acid.
3) Diamino mono carboxylic acids: Arginine 'and lysine.
4) Sulpfitlr containing amino acids: Cysteine, cystine and methionine
5) Aromatic and heterocyclic amino acids: Phenylalanine, tyrosine, histidine, tryptophan , proline and hydroxyproline.