Mechanistic Insights into Binding of Ligands with Thiazolidinedione Warhead to Human Histone Deacetylase 4

Autor: Markus Schweipert, Niklas Jänsch, Neha Upadhyay, Kalpana Tilekar, Ewelina Wozny, Sidra Basheer, Eva Wurster, Marlene Müller, Ramaa C S, Franz-Josef Meyer-Almes
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Pharmaceuticals, Vol 14, Iss 10, p 1032 (2021)
Druh dokumentu: article
ISSN: 1424-8247
DOI: 10.3390/ph14101032
Popis: Recently, we have reported that non-hydroxamate thiazolidinedione (TZD) analogs are capable of inhibiting human deacetylase 4 (HDAC4). This study aims at the dissection of the molecular determinants and kinetics of the molecular recognition of TZD ligands by HDAC4. For this purpose, a structure activity relationship analysis of 225 analogs was combined with a comprehensive study of the enzyme and binding kinetics of a variety of HDAC4 mutant variants. The experimental data were rationalized by docking to the two major conformations of HDAC4. TZD ligands are competitive inhibitors and bind via a two-step mechanism involving principal molecular recognition and induced fit. The residence time of 24 g is (34 ± 3) min and thus much larger than that of the canonical pan-HDAC inhibitor SAHA ((5 ± 2) min). Importantly, the binding kinetics can be tuned by varying the structure of the CAP group.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje