6BL0 image
Entry Detail
PDB ID:
6BL0
Title:
Novel Modes of Inhibition of Wild-Type IDH1:Direct Covalent Modification of His315 with Cmpd11
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2017-11-09
Release Date:
2018-07-25
Method Details:
Experimental Method:
Resolution:
2.17 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Isocitrate dehydrogenase [NADP] cytoplasmic
Chain IDs:A, B, C
Chain Length:425
Number of Molecules:3
Biological Source:Homo sapiens
Primary Citation
Novel Modes of Inhibition of Wild-Type Isocitrate Dehydrogenase 1 (IDH1): Direct Covalent Modification of His315.
J. Med. Chem. 61 6647 6657 (2018)
PMID: 30004704 DOI: 10.1021/acs.jmedchem.8b00305

Abstact

IDH1 plays a critical role in a number of metabolic processes and serves as a key source of cytosolic NADPH under conditions of cellular stress. However, few inhibitors of wild-type IDH1 have been reported. Here we present the discovery and biochemical characterization of two novel inhibitors of wild-type IDH1. In addition, we present the first ligand-bound crystallographic characterization of these novel small molecule IDH1 binding pockets. Importantly, the NADPH competitive α,β-unsaturated enone 1 makes a unique covalent linkage through active site H315. As few small molecules have been shown to covalently react with histidine residues, these data support the potential utility of an underutilized strategy for reversible covalent small molecule design.

Legend

Protein

Chemical

Disease

Primary Citation of related structures