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{{Large structure}}
 
==Solution NMR structure of histone H2A-H2B mono-ubiquitylated at H2A Lys15 in complex with RNF169 (653-708)==
==Solution NMR structure of histone H2A-H2B mono-ubiquitylated at H2A Lys15 in complex with RNF169 (653-708)==
<StructureSection load='5vey' size='340' side='right' caption='[[5vey]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
<StructureSection load='5vey' size='340' side='right'caption='[[5vey]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5vey]] is a 3 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VEY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VEY FirstGlance]. <br>
<table><tr><td colspan='2'>[[5vey]] is a 3 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=5VEY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VEY FirstGlance]. <br>
</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RING-type_E3_ubiquitin_transferase RING-type E3 ubiquitin transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.2.27 2.3.2.27] </span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 20 models</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=5vey FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vey OCA], [http://pdbe.org/5vey PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vey RCSB], [http://www.ebi.ac.uk/pdbsum/5vey PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vey ProSAT]</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=5vey FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vey OCA], [https://pdbe.org/5vey PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vey RCSB], [https://www.ebi.ac.uk/pdbsum/5vey PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vey ProSAT]</span></td></tr>
</table>
</table>
{{Large structure}}
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/H2B1J_HUMAN H2B1J_HUMAN]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref>  Has broad antibacterial activity. May contribute to the formation of the functional antimicrobial barrier of the colonic epithelium, and to the bactericidal activity of amniotic fluid.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> [[http://www.uniprot.org/uniprot/RN169_HUMAN RN169_HUMAN]] Probable E3 ubiquitin-protein ligase that acts as a negative regulator of double-strand breaks (DSBs) repair following DNA damage. Recruited to DSB repair sites by recognizing and binding ubiquitin catalyzed by RNF168 and competes with TP53BP1 and BRCA1 for association with RNF168-modified chromatin, thereby acting as a negative regulator of DSBs repair. E3 ubiquitin-protein ligase activity is not required for regulation of DSBs repair.<ref>PMID:22492721</ref> <ref>PMID:22733822</ref> <ref>PMID:22742833</ref>  [[http://www.uniprot.org/uniprot/UBB_HUMAN UBB_HUMAN]] Ubiquitin exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling.<ref>PMID:16543144</ref> <ref>PMID:19754430</ref> 
[https://www.uniprot.org/uniprot/H2B1J_HUMAN H2B1J_HUMAN] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref>  Has broad antibacterial activity. May contribute to the formation of the functional antimicrobial barrier of the colonic epithelium, and to the bactericidal activity of amniotic fluid.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> [https://www.uniprot.org/uniprot/H2A1B_HUMAN H2A1B_HUMAN]  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 5vey" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 5vey" style="background-color:#fffaf0;"></div>
==See Also==
*[[Histone 3D structures|Histone 3D structures]]
*[[Ubiquitin protein ligase 3D structures|Ubiquitin protein ligase 3D structures]]
*[[3D structures of ubiquitin|3D structures of ubiquitin]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: RING-type E3 ubiquitin transferase]]
[[Category: Homo sapiens]]
[[Category: Botuyan, M V]]
[[Category: Large Structures]]
[[Category: Cui, G]]
[[Category: Botuyan MV]]
[[Category: Hu, Q]]
[[Category: Cui G]]
[[Category: Mer, G]]
[[Category: Hu Q]]
[[Category: Complex]]
[[Category: Mer G]]
[[Category: Nucleosome]]
[[Category: Signaling protein]]
[[Category: Structural protein]]
[[Category: Transferase]]
[[Category: Ubiquitin]]
[[Category: Ubiquitin ligase]]
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