Transcriptional suppression by transient recruitment of ARIP4 to sumoylated nuclear receptor Ad4BP/SF-1

Hidesato Ogawa, Tomoko Komatsu, Yasushi Hiraoka, Ken Ichirou Morohashi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The small ubiquitin-like modifier SUMO conjugates transcription factors and suppresses their respective activation of target genes. Although various SUMO-modified transcription factors have been isolated, mechanisms whereby sumoylated-substrates modulate transcription remain unknown. Here, we purified ARIP4 (AR interacting protein 4, a Rad54 family member and a SNF2 chromatin remodeling factor), which interacts with sumoylated Ad4BP/SF-1 through two SUMO-interacting motifs and one Ad4BP/SF-1-binding region. Remarkably, ARIP4 also interacts selectively with other sumoylated nuclear receptors including LRH-1, AR, and GR. Interestingly, the ATPase activity of ARIP4 was stimulated in the presence of sumoylated Ad4BP/SF-1 and the Ad4BP/SF-1-binding site containing double-stranded DNA. ChIP assays and siRNA studies strongly suggested that ARIP4 temporally suppresses Ad4BP/SF-1-mediated transcription through its transient recruitment to target genes. These findings suggest that ARIP4 may be a cofactor that modulates SUMO-mediated fine-tuning of transcriptional suppression.

Original languageEnglish
Pages (from-to)4235-4245
Number of pages11
JournalMolecular biology of the cell
Volume20
Issue number19
DOIs
Publication statusPublished - Oct 1 2009

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Cytoplasmic and Nuclear Receptors
Transcription Factors
Chromatin Assembly and Disassembly
Ubiquitin
Small Interfering RNA
Transcriptional Activation
Adenosine Triphosphatases
Binding Sites
DNA
Genes
Proteins
Amberlite XAD-2 resin

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Cell Biology

Cite this

Transcriptional suppression by transient recruitment of ARIP4 to sumoylated nuclear receptor Ad4BP/SF-1. / Ogawa, Hidesato; Komatsu, Tomoko; Hiraoka, Yasushi; Morohashi, Ken Ichirou.

In: Molecular biology of the cell, Vol. 20, No. 19, 01.10.2009, p. 4235-4245.

Research output: Contribution to journalArticle

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