8PX8 image
Entry Detail
PDB ID:
8PX8
Keywords:
Title:
C-TERMINAL BROMODOMAIN OF HUMAN BRD2 WITH (S)-5-(1-((1-acetylpiperidin-3-yl)methyl)-5-bromo-1H-benzo[d]imidazol-2-yl)-1,3-dimethylpyridin-2(1H)-one
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2023-07-22
Release Date:
2023-10-18
Method Details:
Experimental Method:
Resolution:
1.60 Å
R-Value Free:
0.17
R-Value Work:
0.14
Space Group:
P 21 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Bromodomain-containing protein 2
Chain IDs:A
Chain Length:115
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Structure-Guided Design of a Domain-Selective Bromodomain and Extra Terminal N-Terminal Bromodomain Chemical Probe.
J.Med.Chem. 66 15728 15749 (2023)
PMID: 37967462 DOI: 10.1021/acs.jmedchem.3c00906

Abstact

Small-molecule-mediated disruption of the protein-protein interactions between acetylated histone tails and the tandem bromodomains of the bromodomain and extra-terminal (BET) family of proteins is an important mechanism of action for the potential modulation of immuno-inflammatory and oncology disease. High-quality chemical probes have proven invaluable in elucidating profound BET bromodomain biology, with seminal publications of both pan- and domain-selective BET family bromodomain inhibitors enabling academic and industrial research. To enrich the toolbox of structurally differentiated N-terminal bromodomain (BD1) BET family chemical probes, this work describes an analysis of the GSK BRD4 bromodomain data set through a lipophilic efficiency lens, which enabled identification of a BD1 domain-biased benzimidazole series. Structure-guided growth targeting a key Asp/His BD1/BD2 switch enabled delivery of GSK023, a high-quality chemical probe with 300-1000-fold BET BD1 domain selectivity and a phenotypic cellular fingerprint consistent with BET bromodomain inhibition.

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