ISDA

Deposition Date 2018-07-17

Release Date 2018-09-12

Last Version Date 2024-03-13

Entry Detail

PDB ID:

6E4A

Keywords:

PROTEIN BINDING

Title:

Crystal structure of human BRD4(1) in complex with CN750

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.26 Å

R-Value Free:

0.18

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Bromodomain-containing protein 4
Gene (Uniprot):BRD4
Chain IDs:A, B
Chain Length:129
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:O60885 Pfam ID:PF00439

Ligand Molecules

GOL

HRY

Primary Citation

Discovery and lead identification of quinazoline-based BRD4 inhibitors.

Yang, S.M, Urban, D.J, Yoshioka, M, Strovel, J.W, Fletcher, S, Wang, A.Q, Xu, X, Shah, P, Hu, X, Hall, M.D, Jadhav, A, Maloney, D.J.Show

Bioorg. Med. Chem. Lett. 28 3483 3488 (2018)

PMID: 30268702 DOI: 10.1016/j.bmcl.2018.08.039

Abstact

A new series of quinazoline-based analogs as potent bromodomain-containing protein 4 (BRD4) inhibitors is described. The structure-activity relationships on 2- and 4-position of quinazoline ring, and the substitution at 6-position that mimic the acetylated lysine are discussed. A co-crystallized structure of 48 (CN750) with BRD4 (BD1) including key inhibitor-protein interactions is also highlighted. Together with preliminary rodent pharmacokinetic results, a new lead (65, CN427) is identified which is suitable for further lead optimization.

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Primary Citation of related structures