zymogen

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Related to Zymogens: Isoenzymes, Isozymes

zymogen

 [zi´mo-jen]
an inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme. adj., adj zymogen´ic.

pro·en·zyme

(prō-en'zīm),
The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active; for example, pepsinogen, trypsinogen, profibrolysin.
Synonym(s): zymogen

zymogen

(zī′mə-jən)
n.

zymogen

an inactive precursor that is converted into an active enzyme by action of an acid, another enzyme, or other means.

pro·en·zyme

(prō-en'zīm)
The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active, e.g., pepsinogen, trypsinogen, profibrinolysin.
Synonym(s): zymogen.

zymogen

The inactive protein precursor of an ENZYME.

zymogen

an inactive precursor of an enzyme, particularly those concerned with protein digestion, for example, PEPSINOGEN and TRYPSINOGEN. Zymogens require ACTIVATION ENERGY to become functional.

zymogen

an inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme.

zymogen cells
the secretory cells that secrete the zymogens.
zymogen granules
contained in the cytoplasm of the secretory cells in the relevant gland. Contain the zymogen.
References in periodicals archive ?
Alcohol and zymogen activation in the pancreatic acinar cell.
Ethanol augments elevated-[Ca2+] C induced trypsin activation in pancreatic acinar zymogen granules.
There were also no zymogen granules or digestive vesicles observed.
monodon had a distinct response to feeding through either digestive enzyme production via formation of zymogen granules (Al-Mohanna et al.
1B), were demonstrated immunologically to be MMP-2 and -9, and accumulated in NAFs as zymogens (see Fig.
Recently, hK2 was found to activate the zymogen or the single-chain form of urokinase-type plasminogen activator (uPA) in vitro (39).
Activation of the zymogen form of prostate-specific antigen by human glandular kallikrein 2.
Trypsin is secreted as the zymogen trypsinogen; it is converted in the intestine into the active enzyme trypsin by an enzyme called enterokinase.