alexa Cloning and functional characterization of HDAC11, a novel member of the human histone deacetylase family.


Journal of Clinical & Cellular Immunology

Author(s): Gao L, Cueto MA, Asselbergs F, Atadja P

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Abstract We have cloned and characterized a human cDNA that belongs to the histone deacetylase family, which we designate as HDAC11. The predicted HDAC11 amino acid sequence reveals an open reading frame of 347 residues with a corresponding molecular mass of 39 kDa. Sequence analyses of the putative HDAC11 protein indicate that it contains conserved residues in the catalytic core regions shared by both class I and II mammalian HDAC enzymes. Putative orthologues of HDAC11 exist in primate, mouse, Drosophila, and plant. Epitope-tagged HDAC11 protein expressed in mammalian cells displays histone deacetylase activity in vitro. Furthermore, HDAC11's enzymatic activity is inhibited by trapoxin, a known histone deacetylase inhibitor. Multiple tissue Northern blot and real-time PCR experiments show that the high expression level of HDAC11 transcripts is limited to kidney, heart, brain, skeletal muscle, and testis. Epitope-tagged HDAC11 protein localizes predominantly to the cell nucleus. Co-immunoprecipitation experiments indicate that HDAC11 may be present in protein complexes that also contain HDAC6. These results indicate that HDAC11 is a novel and unique member of the histone deacetylase family and it may have distinct physiological roles from those of the known HDACs. This article was published in J Biol Chem and referenced in Journal of Clinical & Cellular Immunology

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