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Additional
AP-1 transcription factor
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AP-1 transcription factor
In the field of
molecular biology
, the
activator protein 1 (AP-1)
is a
transcription factor
that is a
heterodimer
composed of proteins belonging to the
c-Fos
,
c-Jun
,
ATF
and
JDP
families. It regulates
gene expression
in response to a variety of stimuli, including
cytokines
,
growth factors
, stress, and bacterial and viral infections. AP-1 in turn controls a number of cellular processes including
differentiation
, proliferation, and
apoptosis
.
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