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==Structure of SPX domain of the yeast inorganic polyphophate polymerase Vtc4 crystallized by carrier-driven crystallization in fusion with the macro domain of human histone macroH2A1.1==
==Structure of SPX domain of the yeast inorganic polyphophate polymerase Vtc4 crystallized by carrier-driven crystallization in fusion with the macro domain of human histone macroH2A1.1==
<StructureSection load='5iit' size='340' side='right' caption='[[5iit]], [[Resolution|resolution]] 2.13&Aring;' scene=''>
<StructureSection load='5iit' size='340' side='right'caption='[[5iit]], [[Resolution|resolution]] 2.13&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5iit]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IIT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5IIT FirstGlance]. <br>
<table><tr><td colspan='2'>[[5iit]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IIT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5IIT FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.134&#8491;</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=5iit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5iit OCA], [http://pdbe.org/5iit PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5iit RCSB], [http://www.ebi.ac.uk/pdbsum/5iit PDBsum]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=5iit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5iit OCA], [https://pdbe.org/5iit PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5iit RCSB], [https://www.ebi.ac.uk/pdbsum/5iit PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5iit ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/VTC4_YEAST VTC4_YEAST]] Component of the vacuolar transporter chaperone (VTC) complex, which plays a role in vacuolar membrane fusion. Required for SEC18/NSF activity in SNARE priming, membrane binding of LMA1 and V(0) trans-complex formation.<ref>PMID:11102525</ref> <ref>PMID:11823419</ref> <ref>PMID:12584253</ref>
[https://www.uniprot.org/uniprot/H2AY_HUMAN H2AY_HUMAN] Variant histone H2A which replaces conventional H2A in a subset of nucleosomes where it represses transcription. 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. Involved in stable X chromosome inactivation. Inhibits the binding of transcription factors and interferes with the activity of remodeling SWI/SNF complexes. Inhibits histone acetylation by EP300 and recruits class I HDACs, which induces a hypoacetylated state of chromatin. In addition, isoform 1, but not isoform 2, binds ADP-ribose and O-acetyl-ADP-ribose, and may be involved in ADP-ribose-mediated chromatin modulation.<ref>PMID:12718888</ref> <ref>PMID:15621527</ref> <ref>PMID:15897469</ref> <ref>PMID:16428466</ref> <ref>PMID:16107708</ref> [https://www.uniprot.org/uniprot/VTC4_YEAST VTC4_YEAST] Component of the vacuolar transporter chaperone (VTC) complex, which plays a role in vacuolar membrane fusion. Required for SEC18/NSF activity in SNARE priming, membrane binding of LMA1 and V(0) trans-complex formation.<ref>PMID:11102525</ref> <ref>PMID:11823419</ref> <ref>PMID:12584253</ref>  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Hothorn, M]]
[[Category: Homo sapiens]]
[[Category: Wild, R]]
[[Category: Large Structures]]
[[Category: Alpha-helical hairpin]]
[[Category: Saccharomyces cerevisiae S288C]]
[[Category: Chaperone]]
[[Category: Hothorn M]]
[[Category: Helical bundle]]
[[Category: Wild R]]
[[Category: Inositol phosphate binding protein]]
[[Category: Protein-protein interaction]]
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