A mechanism-based potent sirtuin inhibitor containing Nε-thiocarbamoyl-lysine (TuAcK)
摘要:
In the current study, we have identified N-epsilon-thiocarbamoyl-lysine (TuAcK) as a general sirtuin inhibitory warhead which was shown to be able to confer potent sirtuin inhibition. This inhibition was also shown to be mechanism-based in that the TuAck residue was able to be processed by a sirtuin enzyme with the formation of a stalled S-alkylamidate intermediate. (C) 2011 Elsevier Ltd. All rights reserved.
Substrate specificity of SIRT1-catalyzed lysine Nε-deacetylation reaction probed with the side chain modified Nε-acetyl-lysine analogs
作者:Nuttara Jamonnak、Brett M. Hirsch、Yi Pang、Weiping Zheng
DOI:10.1016/j.bioorg.2009.10.001
日期:2010.2
Peptides containing l-Nε-acetyl-lysine (l-AcK) or its side chain modified analogs were prepared and assayed using SIRT1, the prototypical human silent information regulator 2 (Sir2) enzyme. While previous studies showed that the side chain acetyl group of l-AcK can be extended to bulkier acyl groups for Sir2 (including SIRT1)-catalyzed lysine Nε-deacylation reaction, our current study suggested that
The total synthesis of NBRI16716B (2), a naturally occurring modulator of tumor-stroma interactions, was successfully achieved. Using this synthetic route, a dehydroxy analogue (21) and a derivative lacking the 5-hydroxy-3-methylpentenoyl side chain (22) became accessible. A preliminary structure-activityrelationshipstudy to unveil the structural requirements for selective inhibition of tumor cells
Potency-Enhanced Peptidomimetic VHL Ligands with Improved Oral Bioavailability
作者:Hao Wu、Jeremy Murray、Noriko Ishisoko、Alexandra Frommlet、Gauri Deshmukh、Antonio DiPasquale、Melinda M. Mulvihill、Donglu Zhang、John G. Quinn、Robert A. Blake、Wayne J. Fairbrother、Jakob Fuhrmann
DOI:10.1021/acs.jmedchem.3c02203
日期:2024.6.13
cellular NanoBRET target engagement assays to enhance the existing VHL ligands. Through systematic modifications of the molecule, we identified the 1,2,3-triazole group as an optimal substitute of the left-hand side amide bond that yields 10-fold higher binding activity. Moreover, incorporating conformationally constrained alterations on the methylthiazole benzylamine moiety led to the development of highly