Transcription factors - CREM: a master-switch in the transcriptional response to cAMP

The CREM gene encodes both repressors and activators of cAMP-dependent transcription in a tissue and developmentally regulated manner. In addition, multiple and cooperative phosphorylation events regulate the function of the CREM proteins. CREM plays a key physiological and developmental role within...

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Bibliographic Details
Main Authors: Lamas, Monica (Author) , Foulkes, Nicholas S. (Author)
Format: Article (Journal)
Language:English
Published: 29 April 1996
In: Philosophical transactions of the Royal Society of London. Series B, Biological sciences
Year: 1996, Volume: 351, Issue: 1339, Pages: 561-567
ISSN:2054-0280
DOI:10.1098/rstb.1996.0055
Online Access:Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1098/rstb.1996.0055
Verlag, kostenfrei, Volltext: http://rstb.royalsocietypublishing.org/content/351/1339/561
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Author Notes:Monica Lamas, Lucia Monaco, Emmanuel Zazopoulos, Enzo Lalli, Katherine Tamai, Lucia Penna, Cristina Mazzucchelli, François Nantel, Nicholas S. Foulkes, Paolo Sassone-Corsi
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Summary:The CREM gene encodes both repressors and activators of cAMP-dependent transcription in a tissue and developmentally regulated manner. In addition, multiple and cooperative phosphorylation events regulate the function of the CREM proteins. CREM plays a key physiological and developmental role within the hypothalamic-pituitary axis. There is a functional switch in CREM expression during the development of male germ cells which is directed by the pituitary hormone FSH . The CREM protein in germ cells is a powerful activator which appears to function as a master-switch in the regulation of postmeiotic genes. CREM is inducible by activation of the cAMP signalling pathway with the kinetics of an early response gene. The induction is transient, cell-specific, does not involve increased transcript stability and does not require protein synthesis. The subsequent decline in CREM expression requires de novo protein synthesis. The induced transcript encodes ICER and is generated from an alternative, intronic promoter. ICER functions as a powerful repressor of cAMP-induced transcription, and represses the activity of its own promoter, thus constituting a negative autoregulatory loop.
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Physical Description:Online Resource
ISSN:2054-0280
DOI:10.1098/rstb.1996.0055