2nxb

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Crystal structure of human Bromodomain containing protein 3 (BRD3)

Structural highlights

2nxb is a 2 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 1.4Å
Ligands:EDO, NA
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

BRD3_HUMAN Note=A chromosomal aberration involving BRD3 is found in a rare, aggressive, and lethal carcinoma arising in midline organs of young people. Translocation t(15;9)(q14;q34) with NUT which produces a BRD3-NUT fusion protein.

Function

BRD3_HUMAN Binds hyperacetylated chromatin and plays a role in the regulation of transcription, probably by chromatin remodeling and interaction with transcription factors. Regulates transcription by promoting the binding of the transcription factor GATA1 to its targets (By similarity). Regulates transcription of the CCND1 gene.[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Bromodomains (BRDs) are protein interaction modules that specifically recognize epsilon-N-lysine acetylation motifs, a key event in the reading process of epigenetic marks. The 61 BRDs in the human genome cluster into eight families based on structure/sequence similarity. Here, we present 29 high-resolution crystal structures, covering all BRD families. Comprehensive crossfamily structural analysis identifies conserved and family-specific structural features that are necessary for specific acetylation-dependent substrate recognition. Screening of more than 30 representative BRDs against systematic histone-peptide arrays identifies new BRD substrates and reveals a strong influence of flanking posttranslational modifications, such as acetylation and phosphorylation, suggesting that BRDs recognize combinations of marks rather than singly acetylated sequences. We further uncovered a structural mechanism for the simultaneous binding and recognition of diverse diacetyl-containing peptides by BRD4. These data provide a foundation for structure-based drug design of specific inhibitors for this emerging target family.

Histone recognition and large-scale structural analysis of the human bromodomain family.,Filippakopoulos P, Picaud S, Mangos M, Keates T, Lambert JP, Barsyte-Lovejoy D, Felletar I, Volkmer R, Muller S, Pawson T, Gingras AC, Arrowsmith CH, Knapp S Cell. 2012 Mar 30;149(1):214-31. PMID:22464331[2]

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

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Citations
245 reviews cite this structure
Modification of enhancer chromatin: what, how, and why?
Calo et al. (2013)
244 more
589 other articles
No citations found

See Also

References

  1. ↑ LeRoy G, Rickards B, Flint SJ. The double bromodomain proteins Brd2 and Brd3 couple histone acetylation to transcription. Mol Cell. 2008 Apr 11;30(1):51-60. doi: 10.1016/j.molcel.2008.01.018. PMID:18406326 doi:10.1016/j.molcel.2008.01.018
  2. ↑ Filippakopoulos P, Picaud S, Mangos M, Keates T, Lambert JP, Barsyte-Lovejoy D, Felletar I, Volkmer R, Muller S, Pawson T, Gingras AC, Arrowsmith CH, Knapp S. Histone recognition and large-scale structural analysis of the human bromodomain family. Cell. 2012 Mar 30;149(1):214-31. PMID:22464331 doi:10.1016/j.cell.2012.02.013

Contents


PDB ID 2nxb

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OCA

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