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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Chlamydocin-hydroxamic acid analogues as histone deacetylase inhibitors.

Chlamydocin-hydroxamic acid analogues were designed and synthesized as histone deacetylase (HDAC) inhibitors based on the structure and HDAC inhibitory activity of chlamydocin and trichostatin A. Chlamydocin is a cyclic tetrapeptide containing an epoxyketone moiety in the side chain that makes it an irreversible inhibitor of HDAC. We replaced the epoxyketone moiety of chlamydocin with hydroxamic acid to design potent and reversible inhibitors of HDAC. In addition, a number of amino-cycloalkanecarboxylic acids (Acc) are introduced instead of the simple amino-isobutric acid (Aib) for a variety of the series of chlamydocin analogues. The compounds synthesized were tested for HDAC inhibitory activity and the results showed that many of them are potent inhibitors of HDAC. The replacement of Aib residue of chlamydocin with an aromatic amino acid enhances the in vivo and in vitro inhibitory activity. We have carried out circular dichroism and molecular modeling studies on chlamydocin-hydroxamic acid analogue and compared it with the solution structure of chlamydocin.[1]


  1. Chlamydocin-hydroxamic acid analogues as histone deacetylase inhibitors. Nishino, N., Jose, B., Shinta, R., Kato, T., Komatsu, Y., Yoshida, M. Bioorg. Med. Chem. (2004) [Pubmed]
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