a crystalline amino acid, HOCH2CH(NH2)COOH, found in many proteins and obtained by the hydrolysis of sericin, the protein constituting silk gum. Abbreviation:Ser; Symbol:S
Main Entry: ser·ine Pronunciation: 'se(&)r-"En Function: noun : a nonessential amino acid C3H7NO3 that occursespecially as a structural part of many proteins and phosphatidylethanolamines and is a precursor of glycine—abbreviation Ser