- 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
- a sweet-tasting amino acid that is synthesized in the body and is involved in the synthesis of cysteine; 2-amino-3-hydroxypropanoic acid. Formula: CH 2 (OH)CH(NH 2)COOH
n.type of amino acid, 1880, from German serin (1865), from Latin sericum “silk” (see serge), with chemical suffix -ine (2). n.
- An amino acid that is a common constituent of many proteins.
- A nonessential amino acid. Chemical formula: C3H7NO3. See more at amino acid.