- In biochemistry, a
zymogen (/ˈzaɪmədʒən, -moʊ-/), also
called a
proenzyme (/ˌproʊˈɛnzaɪm/), is an
inactive precursor of an enzyme. A
zymogen requires...
- of the
plasma proteins (1%) are
regulatory proteins, such as enzymes,
proenzymes, and hormones. All
blood proteins are
synthesized in
liver except for...
- and/or in
large quantities.
Enzyme precursors are
called zymogens or
proenzymes.
Examples are
enzymes of the
digestive tract in humans. Some
protein precursors...
- or
proenzymes. When
released into the duodenum, they are
activated by the
enzyme enterokinase present in the
lining of the duodenum. The
proenzymes are...
-
secreted in an
inactive proenzyme form. When
these proenzymes reach the
lumen of the tract, a
factor specific to a
particular proenzyme will
activate it. A...
- of
inactive precursor to an
enzyme is
known as a zymogen: 149–53 or
proenzyme.
Enzyme production (transcription and
translation of
enzyme genes) can...
- and
tryptophan increase the
probability of cleavage. Pepsin's
zymogen (
proenzyme), pepsinogen, is
released by the
gastric chief cells in the
stomach wall...
-
proenzymes) must be
activated first. This is done by
removing the
amino acid that
blocks the
entrance channel to the
active site when the
proenzyme is...
-
inactivated pepsinogen. Once in the
stomach lumen gastric acid
activates the
proenzyme to pepsin. A
typical adult human stomach will
secrete about 1.5 liters...
- Papain-like
cysteine proteinases are
essentially synthesised as
inactive proenzymes (zymogens) with N-terminal
propeptide regions. The
activation process...
