4xy9

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Crystal Structure of the first bromodomain of human BRD4 in complex with a 2-amine-9H-purine ligand

Structural highlights

4xy9 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.83Å
Ligands:43U, EDO
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

BRD4_HUMAN Note=A chromosomal aberration involving BRD4 is found in a rare, aggressive, and lethal carcinoma arising in midline organs of young people. Translocation t(15;19)(q14;p13) with NUT which produces a BRD4-NUT fusion protein.[1] [2]

Function

BRD4_HUMAN Plays a role in a process governing chromosomal dynamics during mitosis (By similarity).

Publication Abstract from PubMed

The 2-amine-9H-purine scaffold was identified as a weak bromodomain template and was developed via iterative structure based design into a potent nanomolar ligand for the bromodomain of human BRD9 with small residual micromolar affinity toward the bromodomain of BRD4. Binding of the lead compound 11 to the bromodomain of BRD9 results in an unprecedented rearrangement of residues forming the acetyllysine recognition site, affecting plasticity of the protein in an induced-fit pocket. The compound does not exhibit any cytotoxic effect in HEK293 cells and displaces the BRD9 bromodomain from chromatin in bioluminescence proximity assays without affecting the BRD4/histone complex. The 2-amine-9H-purine scaffold represents a novel template that can be further modified to yield highly potent and selective tool compounds to interrogate the biological role of BRD9 in diverse cellular systems.

9H-Purine Scaffold Reveals Induced-Fit Pocket Plasticity of the BRD9 Bromodomain.,Picaud S, Strocchia M, Terracciano S, Lauro G, Mendez J, Daniels DL, Riccio R, Bifulco G, Bruno I, Filippakopoulos P J Med Chem. 2015 Mar 5. PMID:25703523[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
11 reviews cite this structure
Bromodomain inhibitors and cancer therapy: From structures to applications.
Pérez-Salvia et al. (2017)
10 more
15 other articles
No citations found

See Also

References

  1. ↑ French CA, Miyoshi I, Kubonishi I, Grier HE, Perez-Atayde AR, Fletcher JA. BRD4-NUT fusion oncogene: a novel mechanism in aggressive carcinoma. Cancer Res. 2003 Jan 15;63(2):304-7. PMID:12543779
  2. ↑ French CA, Miyoshi I, Aster JC, Kubonishi I, Kroll TG, Dal Cin P, Vargas SO, Perez-Atayde AR, Fletcher JA. BRD4 bromodomain gene rearrangement in aggressive carcinoma with translocation t(15;19). Am J Pathol. 2001 Dec;159(6):1987-92. PMID:11733348 doi:10.1016/S0002-9440(10)63049-0
  3. ↑ Picaud S, Strocchia M, Terracciano S, Lauro G, Mendez J, Daniels DL, Riccio R, Bifulco G, Bruno I, Filippakopoulos P. 9H-Purine Scaffold Reveals Induced-Fit Pocket Plasticity of the BRD9 Bromodomain. J Med Chem. 2015 Mar 5. PMID:25703523 doi:http://dx.doi.org/10.1021/jm501893k

Contents


PDB ID 4xy9

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OCA

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