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X-ray structure of Danio rerio histone deacetylase 6 (HDAC6) CD2 in complex with a S-29bX-ray structure of Danio rerio histone deacetylase 6 (HDAC6) CD2 in complex with a S-29b
Structural highlights
FunctionPublication Abstract from PubMedOur previously reported HDAC6 inhibitor (HDAC6i) Marbostat-100 (4) has provided many arguments for further clinical evaluation. By the substitution of the acidic hydrogen of 4 for different carbon residues, we were able to generate an all-carbon stereocenter, which significantly improves the hydrolytic stability of the inhibitor. Further asymmetric synthesis has shown that the (S)-configured inhibitors preferentially bind to HDAC6. This led to the highly selective and potent methyl-substituted derivative S-29b, which elicited a long-lasting tubulin hyperacetylation in MV4-11 cells. Finally, a crystal structure of the HDAC6/S-29b complex provided mechanistic explanation for the high potency and stereoselectivity of synthesized compound series. Biological and structural investigation of tetrahydro-beta-carboline-based selective HDAC6 inhibitors with improved stability.,Scheuerer S, Motlova L, Schaker-Hubner L, Sellmer A, Feller F, Ertl FJ, Koch P, Hansen FK, Barinka C, Mahboobi S Eur J Med Chem. 2024 Jul 26;276:116676. doi: 10.1016/j.ejmech.2024.116676. PMID:39067437[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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