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Genes Dev. 2005 Nov 1;19(21):2540-5.

The Drosophila nucleosome remodeling factor NURF is required for Ecdysteroid signaling and metamorphosis.

Author information

  • 1Laboratory of Molecular Cell Biology, National Cancer Institute, NIH, Bethesda, Maryland 20814, USA. p.w.badenhorst@bham.ac.uk

Abstract

Drosophila NURF is an ISWI-containing ATP-dependent chromatin remodeling complex that regulates transcription by catalyzing nucleosome sliding. To determine in vivo gene targets of NURF, we performed whole genome expression analysis on mutants lacking the NURF-specific subunit NURF301. Strikingly, a large set of ecdysone-responsive targets is included among several hundred NURF-regulated genes. Null Nurf301 mutants do not undergo larval to pupal metamorphosis, and also enhance dominant-negative mutations in ecdysone receptor. Moreover, purified NURF binds EcR in an ecdysone-dependent manner, suggesting it is a direct effector of nuclear receptor activity. The conservation of NURF in mammals has broad implications for steroid signaling.

PMID:
16264191
[PubMed - indexed for MEDLINE]
PMCID:
PMC1276728
Free PMC Article

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