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Science. 2004 Jan 9;303(5655):197-202.

Dendrite development regulated by CREST, a calcium-regulated transcriptional activator.

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  • 1Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Abstract

The lasting effects of neuronal activity on brain development involve calcium-dependent gene expression. Using a strategy called transactivator trap, we cloned a calcium-responsive transactivator called CREST (for calcium-responsive transactivator). CREST is a SYT-related nuclear protein that interacts with adenosine 3',5'-monophosphate (cAMP) response element-binding protein (CREB)-binding protein (CBP) and is expressed in the developing brain. Mice that have a targeted disruption of the crest gene are viable but display defects in cortical and hippocampal dendrite development. Cortical neurons from crest mutant mice are compromised in calcium-dependent dendritic growth. Thus, calcium activation of CREST-mediated transcription helps regulate neuronal morphogenesis.

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PMID:
14716005
[PubMed - indexed for MEDLINE]
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