zymogen
n . 酵素原,酵素母質,發酵菌
酵素原,酵素母質,發酵菌
zymogen n 1 :
any of a group of compounds that are inactive precursors of enzymes and require some change (
such as the hydrolysis of a fragment that masks an active enzyme )
to become active [
synonym : {
proenzyme }, {
zymogen }]
proenzyme \
pro "
en *
zyme \,
n . [.] (
Bioch .)
Any one of a class of proteins that are converted ,
in the normal course of cellular metabolism ,
into one or more active enzymes ;
also called {
zymogen }.
The conversion usually is due to a specific cleavage of a peptide bond by another enzyme ,
or may be due to acid .
[
PJC ]
Zymogen \
Zym "
o *
gen \,
n . [
Zyme -
gen .] (
Physiol .
Chem .)
A mother substance ,
or antecedent ,
of an enzyme or chemical ferment ; --
applied to such substances as ,
not being themselves actual ferments ,
may by internal changes give rise to a ferment .
[
1913 Webster ]
The pancreas contains but little ready -
made ferment ,
though there is present in it a body ,
zymogen ,
which gives birth to the ferment . --
Foster .
[
1913 Webster ]
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