
The substance made first in the pancreas that is then made into insulin.
Found on
http://en.wikipedia.org/wiki/Glossary_of_diabetes

Proinsulin is the prohormone precursor to insulin made in the beta cells of the islets of Langerhans, specialized regions of the pancreas. In humans, proinsulin is encoded by the INS gene. == Synthesis and post-translational modification == Proinsulin is synthesized in the endoplasmic reticulum, where it is folded and its disulfide bonds are oxidi...
Found on
http://en.wikipedia.org/wiki/Proinsulin

(from the article `hormone`) ...are linked by two other disulfide linkages, the destruction of which destroys the activity of the molecule. It is thought that the molecule first ... ...of two chains, an A chain (with 21 amino acids) and a B chain (with 30 amino acids), which are linked together by sulfur atoms. Insulin is derived ... ...
Found on
http://www.britannica.com/eb/a-z/p/119

the substance made first in the pancreas and then broken into several pieces to become insulin.
Found on
http://www.diabetes.org

<protein> The substance made first in the pancreas that is then made into insulin. When insulin is purified from the pancreas of pork or beef, all the proinsulin is not fully removed. When some people use these insulins, the proinsulin can cause the body to react with a rash, to resist the insulin, or even to make dents or lumps in the skin a...
Found on
http://www.encyclo.co.uk/local/20973

(pro-in´sә-lin) a precursor of insulin, having low biologic activity.
Found on
http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: prō-in′sŭ-lin Definitions: 1. A single-chain precursor of insulin.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=72619

The substance made first in the pancreas that is then made into insulin.
Found on
http://www.translationdirectory.com/glossaries/glossary099.htm

The substance made first in the pancreas and then broken into several pieces to become insulin.
Found on
https://www.diabetes.org/resources/students/common-terms

the prohormone of insulin, converted into insulin by enzymatic removal of part of the molecule.
Found on
https://www.infoplease.com/dictionary/proinsulin
No exact match found.