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Enzymes that
require a
cofactor but do not have one
bound are
called apoenzymes or apoproteins. An
enzyme together with the cofactor(s)
required for activity...
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called a coenzyme, is bound. In this system, the
inactive form (the
apoenzyme)
becomes the
active form (the holoenzyme) when the
coenzyme binds. In...
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which consists of two "alpha" and two "beta"
polypeptide chains. An
apoenzyme (or, generally, an apoprotein) is the
protein without any small-molecule...
- apoprotein. Not to be
confused with the
cosubstrate that
binds to the
enzyme apoenzyme (either a
holoprotein or heteroprotein) by non-covalent
binding a non-protein...
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apoproteins in Wiktionary, the free dictionary.
Apoprotein may
refer to:
Apoenzyme, the
protein part of an
enzyme without its
characteristic prosthetic group...
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enzymes and proteins. An
inactive enzyme without the
cofactor is
called an
apoenzyme,
while the
complete enzyme with
cofactor is
called a holoenzyme.[page needed]...
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other protein kinases in a
genome (the kinome). When inactive, the PKA
apoenzyme exists as a
tetramer which consists of two
regulatory subunits and two...
- and ATP. If an
enzyme needs coenzyme to work itself, it is
called an
apoenzyme. In fact, it
alone cannot catalyze reactions properly. Only when its cofactor...
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Image displaying apoenzyme of dnaB and the dnaB-dnaC complex.
Changes in
structure before and
after binding can be seen, such as
opening of ring structure...
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responsible for the
catalytic activity of holoenzymes,
which consist of an
apoenzyme that
forms an
active enzyme system by
combination with a
coenzyme and...
