proinsulin Hear it!

proinsulin definition

pro·in·su·lin (prō in′sə lin)

noun

a polypeptide molecule formed in the islets of Langerhans: hydrolysis of its peptide bonds yields insulin and a biochemically inactive peptide

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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