2dvr

Crystal structure analysis of the N-terminal bromodomain of human BRD2 complexed with acetylated histone H4 peptide

spinqualitylabelsall models 2dvr, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2dvr is a 5 chain structure with sequence from Homo sapiens and Saccharomyces cerevisiae S288C. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.3Å Ligands: ALY, MSE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN Function BRD2_HUMAN May play a role in spermatogenesis or folliculogenesis (By similarity). Binds hyperacetylated chromatin and plays a role in the regulation of transcription, probably by chromatin remodeling. Regulates transcription of the CCND1 gene. Plays a role in nucleosome assembly. 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 Recognition of acetylated chromatin by the bromodomains and extra-terminal domain (BET) family proteins is a hallmark for transcriptional activation and anchoring viral genomes to mitotic chromosomes of the host. One of the BET family proteins BRD2 interacts with acetylated chromatin during mitosis and leads to transcriptional activation in culture cells. Here, we report the crystal structures of the N-terminal bromodomain of human BRD2 (BRD2-BD1; residues 74-194) in complex with each of three different Lys-12-acetylated H4 peptides. The BRD2-BD1 recognizes the H4 tail acetylated at Lys-12 (H4K12ac), whereas the side chain of hypoacetylated Lys-8 of H4 binds at the cavity of the dimer interface of BRD2-BD1. From binding studies, we identified the BRD2-BD1 residues that are responsible for recognition of the Lys-12-acetylated H4 tail. In addition, mutation to Lys-8 in the Lys-12-acetylated H4 tail decreased the binding to BRD2-BD1, implicating the critical role of Lys-8 in the Lys-12-acetylated H4 tail for the recognition by BRD2-BD1. Our findings provide a structural basis for deciphering the histone code by the BET bromodomain through the binding with a long segment of the histone H4 tail, which presumably prevents erasure of the histone code during the cell cycle. Structural basis for acetylated histone H4 recognition by the human BRD2 bromodomain.,Umehara T, Nakamura Y, Jang MK, Nakano K, Tanaka A, Ozato K, Padmanabhan B, Yokoyama S J Biol Chem. 2010 Mar 5;285(10):7610-8. Epub 2010 Jan 4. PMID:20048151 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Bromodomain-containing protein 3D structures

Proteopedia Page Contributors and Editors (what is this?)

OCA