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Variable Effects of Phosphorylation of Pit-1 Dictated by the DNA Response Elements

Kapiloff, Michael S., Farkash, Yigal, Wegner, Michael, Rosenfeld, Michael G.·1991·Science

Abstract

Pit-1, a tissue-specific POU domain transcription factor, is required for the activation of the prolactin, growth hormone, and Pit-1 promoters that confer regulation by epidermal growth factor, adenosine 3′,5′-monophosphate (cAMP), and phorbol esters. Pit-1 is phosphorylated in pituitary cells at two distinct sites in response to phorbol esters and cAMP. Phosphorylation of Pit-1 modifies its conformation on DNA recognition elements and results in increased binding at certain sites and decreased binding at other sites, dependent on DNA sequences adjacent to the core Pit-1 binding motif. One residue (Thr 220 ), located in the POU homeodomain within a sequence conserved throughout the POU-domain family, confers these responses.

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Metadata

Authors
Kapiloff, M. S., Farkash, Y., Wegner, M., & Rosenfeld, M. G.
Venue
Science
Published
1991-08-16
Volume
253
Issue
5021
Pages
786-789
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2047466377
Cited by
203
References
0
FWCI
8.37
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Variable Effects of Phosphorylation of Pit-1 Dictated by the DNA Response Elements. https://app.cochat.ai/papers/10.1126/science.1652153
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Kapiloff, M. S., Farkash, Y., Wegner, M., & Rosenfeld, M. G. (1991). Variable Effects of Phosphorylation of Pit-1 Dictated by the DNA Response Elements. Science. https://doi.org/10.1126/science.1652153

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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