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PMID:10640276

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Citation

Kao, HY, Downes, M, Ordentlich, P and Evans, RM (2000) Isolation of a novel histone deacetylase reveals that class I and class II deacetylases promote SMRT-mediated repression. Genes Dev. 14:55-66

Abstract

The transcriptional corepressor SMRT functions by mediating the repressive effect of transcription factors involved in diverse signaling pathways. The mechanism by which SMRT represses basal transcription has been proposed to involve the indirect recruitment of histone deacetylase HDAC1 via the adaptor mSin3A. In contrast to this model, a two-hybrid screen on SMRT-interacting proteins resulted in the isolation of the recently described HDAC5 and a new family member termed HDAC7. Molecular and biochemical results indicate that this interaction is direct and in vivo evidence colocalizes SMRT, mHDAC5, and mHDAC7 to a distinct nuclear compartment. Surprisingly, HDAC7 can interact with mSin3A in yeast and in mammalian cells, suggesting association of multiple repression complexes. Taken together, our results provide the first evidence that SMRT-mediated repression is promoted by class I and class II histone deacetylases and that SMRT can recruit class II histone deacetylases in a mSin3A-independent fashion.

Links

PubMed PMC316336

Keywords

Amino Acid Sequence; Cell Nucleus/metabolism; DNA-Binding Proteins/metabolism; DNA-Binding Proteins/physiology; Histone Deacetylases/chemistry; Histone Deacetylases/isolation & purification; Histone Deacetylases/metabolism; Molecular Sequence Data; Nuclear Receptor Co-Repressor 2; Repressor Proteins/metabolism; Repressor Proteins/physiology; Saccharomyces cerevisiae/enzymology; Sequence Homology, Amino Acid; Transcription, Genetic

Significance

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Gene product Qualifier GO ID GO term name Evidence Code with/from Aspect Notes Status


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