Membrane depolarization and calcium induce c-fos transcription via phosphorylation of transcription factor CREB

Morgan Sheng, Grant McFadden, Michael E. Greenberg

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Abstract

The mechanism by which the calcium influx signal, triggered by membrane depolarization, is transduced to the nucleus to activate c-fos proto-oncogene transcription has been characterized. A calcium response element (CaRE) that is indistinguishable from a CAMP response element (CRE) mediates transcriptional inducibility by depolarization. Its cognate transcription factor CREB is the target for both calcium and CAMP signals. CREB is rapidly phosphorylated in response to depolarization or cAMP, at a site known to be important for the transcriptional activating function of this protein. The convergent effects of calcium and CAMP on CREB activation are mediated by distinct protein kinase signaling pathways. CREB and its binding site, the Ca/CRE, can thus function as a regulatory element that integrates both calcium and cAMP signals in the control of gene expression.

Original languageEnglish (US)
Pages (from-to)571-582
Number of pages12
JournalNeuron
Volume4
Issue number4
DOIs
StatePublished - Apr 1990
Externally publishedYes

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ASJC Scopus subject areas

  • Neuroscience(all)

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