5UEW image
Entry Detail
PDB ID:
5UEW
Title:
BRD2 Bromodomain2 with A-1360579
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2017-01-03
Release Date:
2017-05-10
Method Details:
Experimental Method:
Resolution:
1.83 Å
R-Value Free:
0.23
R-Value Work:
0.19
R-Value Observed:
0.20
Space Group:
P 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Bromodomain-containing protein 2
Chain IDs:A, B
Chain Length:111
Number of Molecules:2
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Fragment-Based, Structure-Enabled Discovery of Novel Pyridones and Pyridone Macrocycles as Potent Bromodomain and Extra-Terminal Domain (BET) Family Bromodomain Inhibitors.
J. Med. Chem. 60 3828 3850 (2017)
PMID: 28368119 DOI: 10.1021/acs.jmedchem.7b00017

Abstact

Members of the BET family of bromodomain containing proteins have been identified as potential targets for blocking proliferation in a variety of cancer cell lines. A two-dimensional NMR fragment screen for binders to the bromodomains of BRD4 identified a phenylpyridazinone fragment with a weak binding affinity (1, Ki = 160 μM). SAR investigation of fragment 1, aided by X-ray structure-based design, enabled the synthesis of potent pyridone and macrocyclic pyridone inhibitors exhibiting single digit nanomolar potency in both biochemical and cell based assays. Advanced analogs in these series exhibited high oral exposures in rodent PK studies and demonstrated significant tumor growth inhibition efficacy in mouse flank xenograft models.

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Primary Citation of related structures