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| | ==Solution structure of the MRG15-MRGBP complex== | | ==Solution structure of the MRG15-MRGBP complex== |
| - | <StructureSection load='2n1d' size='340' side='right' caption='[[2n1d]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2n1d' size='340' side='right'caption='[[2n1d]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2n1d]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N1D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2N1D FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2n1d]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2N1D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2N1D FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2lkm|2lkm]]</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2n1d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n1d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2n1d RCSB], [http://www.ebi.ac.uk/pdbsum/2n1d PDBsum]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2n1d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n1d OCA], [https://pdbe.org/2n1d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2n1d RCSB], [https://www.ebi.ac.uk/pdbsum/2n1d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2n1d ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/MRGBP_HUMAN 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. [[http://www.uniprot.org/uniprot/MO4L1_HUMAN MO4L1_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. The NuA4 complex ATPase and helicase activities seem to be, at least in part, contributed by the association of RUVBL1 and RUVBL2 with EP400. NuA4 may also play a direct role in DNA repair when directly recruited to sites of DNA damage. Also component of the mSin3A complex which acts to repress transcription by deacetylation of nucleosomal histones. Required for homologous recombination repair (HRR) and resistance to mitomycin C (MMC). Involved in the localization of PALB2, BRCA2 and RAD51, but not BRCA1, to DNA-damage foci.<ref>PMID:14966270</ref> <ref>PMID:20332121</ref> | + | [https://www.uniprot.org/uniprot/MRGBP_HUMAN 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. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| | </div> | | </div> |
| | + | <div class="pdbe-citations 2n1d" style="background-color:#fffaf0;"></div> |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Radhakrishnan, I]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Xie, T]] | + | [[Category: Large Structures]] |
| - | [[Category: Zhang, Y]] | + | [[Category: Radhakrishnan I]] |
| - | [[Category: Zmysloski, A M]] | + | [[Category: Xie T]] |
| - | [[Category: Hat complex]] | + | [[Category: Zhang Y]] |
| - | [[Category: Mrg domain]] | + | [[Category: Zmysloski AM]] |
| - | [[Category: Protein binding]]
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| - | [[Category: Protein-protein interaction]]
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| - | [[Category: Tip60-nua4 complex]]
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| Structural highlights
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[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Xie T, Zmyslowski AM, Zhang Y, Radhakrishnan I. Structural Basis for Multi-specificity of MRG Domains. Structure. 2015 Apr 29. pii: S0969-2126(15)00124-0. doi:, 10.1016/j.str.2015.03.020. PMID:25960410 doi:http://dx.doi.org/10.1016/j.str.2015.03.020
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