cysteine Hear it!

cysteine definition

cys·teine (sis′tē in, -tē ēn′)

noun

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

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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