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• Proinsulin - Wikipedia, the free encyclopedia

  Proinsulin is the prohormone precursor to insulin made in the beta cell of the islets of Langerhans. It is synthesized in the endoplasmic reticulum, where it is folded and its ...

• proinsulin - definition of proinsulin in the Medical dictionary - by ...

  proinsulin /pro·in·su·lin/ (-in´su-lin) a precursor of insulin, having low biologic activity. pro·in·su·lin (pr-n s-l n) n. A single-chain polypeptide that is the precursor ...

• proinsulin - definition of proinsulin by the Free Online Dictionary ...

  pro·in·su·lin   (pr-n s-l n) n. A single-chain polypeptide that is the precursor of insulin, converted into insulin by enzymatic action.