cysteine

(sistē in, -tē ēn′)

noun

a nonessential amino acid, HSCHCH(NH)COOH, derived from cystine

See cysteine in American Heritage Dictionary 4

cys·te·ine

noun
An amino acid, C3H7O2NS, derived from cystine and found in most proteins.

Origin: Alteration of cystine.

Learn more about cysteine

link/cite print suggestion box