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Histone Deacetylase 6 (HDAC6) Is an Independent Deacetylase for α-Tubulin

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Abstract:

Histone deacetylase 6 (HDAC6) is a cytosolic enzyme that catalyzes deacetylation of several proteins. Acetylated tubulin has been recently identified as a physiological substrate of HDAC6. However in previous reports, all in vitro binding and enzymatic assays were accomplished with only partially purified protein samples. Therefore, it still remained unclear whether HDAC6 alone could interact with tubulin and catalyze deacetylation. In this study, both binding and enzymatic assays were conducted using recombinant-derived HDAC6 and purified α/β tubulin to eliminate possible contamination. The results clearly demonstrated that interaction between HDAC6 and tubulin is independent of other proteins. In addition, HDAC6 can independently catalyze deacetylation of both tubulin dimer and microtubule polymer.





Keywords: HDAC6; co-immunoprecipitation; deacetylase; enzymatic activity; tubulin

Document Type: Research Article

DOI: http://dx.doi.org/10.2174/092986610791112620

Publication date: May 1, 2010

More about this publication?
  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
ben/ppl/2010/00000017/00000005/art00002
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