6o22

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'''Unreleased structure'''
 
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The entry 6o22 is ON HOLD until Paper Publication
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==Structure of Asf1-H3:H4-Rtt109-Vps75 histone chaperone-lysine acetyltransferase complex with the histone substrate.==
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<StructureSection load='6o22' size='340' side='right'caption='[[6o22]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
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Authors:
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== Structural highlights ==
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<table><tr><td colspan='2'>[[6o22]] is a 6 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O22 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6O22 FirstGlance]. <br>
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Description:
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</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Histone_acetyltransferase Histone acetyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.48 2.3.1.48] </span></td></tr>
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[[Category: Unreleased Structures]]
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<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=6o22 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o22 OCA], [http://pdbe.org/6o22 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o22 RCSB], [http://www.ebi.ac.uk/pdbsum/6o22 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o22 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/H32_XENLA H32_XENLA]] 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. [[http://www.uniprot.org/uniprot/VPS75_YEAST VPS75_YEAST]] Histone chaperone which acts as a cofactor stimulating the histone H3 'Lys-56' acetylation by RTT109. May be involved in vacuolar proteins sorting.<ref>PMID:12134085</ref> <ref>PMID:17320445</ref> [[http://www.uniprot.org/uniprot/ASF1_YEAST ASF1_YEAST]] Histone chaperone that facilitates histone deposition and histone exchange and removal during nucleosome assembly and disassembly. Facilitates histone deposition through both replication-dependent and replication-independent chromatin assembly pathways. Cooperates with chromatin assembly factor 1 (CAF-1) to promote replication-dependent chromatin assembly and with the HIR complex to promote replication-independent chromatin assembly, which may occur during transcription and DNA repair. May be required for the maintenance of a subset of replication elongation factors, including DNA polymerase epsilon, the RFC complex and PCNA, at stalled replication forks. Also required for acetylation of histone H3 on 'Lys-9' and 'Lys-56'.<ref>PMID:9290207</ref> <ref>PMID:10591219</ref> <ref>PMID:11412995</ref> <ref>PMID:11331602</ref> <ref>PMID:11731479</ref> <ref>PMID:11731480</ref> <ref>PMID:11404324</ref> <ref>PMID:11172707</ref> <ref>PMID:11856374</ref> <ref>PMID:11756556</ref> <ref>PMID:12093919</ref> <ref>PMID:14585955</ref> <ref>PMID:15071494</ref> <ref>PMID:15452122</ref> <ref>PMID:15175160</ref> <ref>PMID:15542829</ref> <ref>PMID:15542840</ref> <ref>PMID:15766286</ref> <ref>PMID:16303565</ref> <ref>PMID:15821127</ref> <ref>PMID:15901673</ref> <ref>PMID:16020781</ref> <ref>PMID:16143623</ref> <ref>PMID:16039596</ref> <ref>PMID:15632066</ref> <ref>PMID:15891116</ref> <ref>PMID:16141196</ref> <ref>PMID:15840725</ref> <ref>PMID:16815704</ref> <ref>PMID:16936140</ref> <ref>PMID:16582440</ref> <ref>PMID:16407267</ref> <ref>PMID:17046836</ref> <ref>PMID:16678113</ref> <ref>PMID:16501045</ref> <ref>PMID:16627621</ref> <ref>PMID:17107956</ref> <ref>PMID:17320445</ref> <ref>PMID:14680630</ref> [[http://www.uniprot.org/uniprot/RT109_YEAST RT109_YEAST]] Required for acetylation of 'Lys-56' of histone H3 (H3K56ac) which occurs in S phase and disappears during G(2)/M phase of the cell cycle and is involved in transcription DNA repair process. H3K56 acetylation weakens of the interaction between the histone core and the surrounding DNA in the nucleosomal particle and drives chromatin disassembly. Involved in regulation of Ty1 transposition.<ref>PMID:11779788</ref> <ref>PMID:17046836</ref> <ref>PMID:17369253</ref> <ref>PMID:17690098</ref> <ref>PMID:17320445</ref> <ref>PMID:17272722</ref> <ref>PMID:17272723</ref> <ref>PMID:18577595</ref> <ref>PMID:18723682</ref> [[http://www.uniprot.org/uniprot/H4_XENLA H4_XENLA]] 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.
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Histone acetyltransferase]]
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[[Category: Large Structures]]
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[[Category: Carlomagno, T]]
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[[Category: Danilenko, N]]
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[[Category: Kirkpatrick, J P]]
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[[Category: Chaperone]]

Revision as of 06:23, 31 July 2019

Structure of Asf1-H3:H4-Rtt109-Vps75 histone chaperone-lysine acetyltransferase complex with the histone substrate.

PDB ID 6o22

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