2n1d

Solution structure of the MRG15-MRGBP complex

spinqualitylabelsall models 2n1d Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2n1d is a 2 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MRGBP_HUMAN Component of the NuA4 histone acetyltransferase (HAT) complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage. Publication Abstract from PubMed Chromatin-binding proteins play vital roles in the assembly and recruitment of multi-subunit complexes harboring effector proteins to specific genomic loci. MRG15, a chromodomain-containing chromatin-binding protein, recruits diverse chromatin-associated complexes that regulate gene transcription, DNA repair, and RNA splicing. Previous studies with Pf1, another chromatin-binding subunit of the Sin3S/Rpd3S histone deacetylase complex, defined the sequence and structural requirements for interactions with the MRG15 MRG domain, a common target of diverse subunits in the aforementioned complexes. We now show that MRGBP, a member of the Tip60/NuA4 histone acetyltransferase complex, engages the same two surfaces of the MRG domain as Pf1. High-affinity interactions occur via a bipartite structural motif including an FxLP sequence motif. MRGBP shares little sequence and structural similarity with Pf1, yet targets similar pockets on the surface of the MRG domain, mimicking Pf1 in its interactions. Our studies shed light onto how MRG domains have evolved to bind diverse targets. Structural Basis for Multi-specificity of MRG Domains.,Xie T, Zmyslowski AM, Zhang Y, Radhakrishnan I Structure. 2015 Apr 29. pii: S0969-2126(15)00124-0. doi:, 10.1016/j.str.2015.03.020. PMID:25960410 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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