4efa: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4efa]] is a 3 chain structure with sequence from [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=4EFA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EFA FirstGlance]. <br>
<table><tr><td colspan='2'>[[4efa]] is a 3 chain structure with sequence from [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=4EFA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EFA FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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]] 2.8163&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=4efa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4efa OCA], [https://pdbe.org/4efa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4efa RCSB], [https://www.ebi.ac.uk/pdbsum/4efa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4efa 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=4efa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4efa OCA], [https://pdbe.org/4efa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4efa RCSB], [https://www.ebi.ac.uk/pdbsum/4efa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4efa ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/VATC_YEAST VATC_YEAST]] Subunit of the peripheral V1 complex of vacuolar ATPase. Subunit C acts as a flexible stator that holds together the catalytic and the membrane sectors of the enzyme. Reversibly leaves the enzyme after glucose depletion, causing the catalytic subcomplex V1 to detach from the V0 section. Binds ATP and is likely to have a specific function in the catalytic activity of the catalytic sector. V-ATPase is responsible for acidifying a variety of intracellular compartments in eukaryotic cells.<ref>PMID:10781598</ref>
[https://www.uniprot.org/uniprot/VATC_YEAST VATC_YEAST] Subunit of the peripheral V1 complex of vacuolar ATPase. Subunit C acts as a flexible stator that holds together the catalytic and the membrane sectors of the enzyme. Reversibly leaves the enzyme after glucose depletion, causing the catalytic subcomplex V1 to detach from the V0 section. Binds ATP and is likely to have a specific function in the catalytic activity of the catalytic sector. V-ATPase is responsible for acidifying a variety of intracellular compartments in eukaryotic cells.<ref>PMID:10781598</ref>  
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== Publication Abstract from PubMed ==
Vacuolar ATPases (V-ATPases) are multisubunit rotary motor proton pumps that function to acidify subcellular organelles in all eukaryotic organisms. V-ATPase is regulated by a unique mechanism that involves reversible dissociation into V(1)-ATPase and V(o) proton channel, a process that involves breaking of protein interactions mediated by subunit C, the cytoplasmic domain of subunit "a" and three "peripheral stalks," each made of a heterodimer of E and G subunits. Here, we present crystal structures of a yeast V-ATPase heterotrimeric complex composed of EG heterodimer and the head domain of subunit C (C(head)). The structures show EG heterodimer folded in a noncanonical coiled coil that is stabilized at its N-terminal ends by binding to C(head). The coiled coil is disrupted by a bulge of partially unfolded secondary structure in subunit G and we speculate that this unique feature in the eukaryotic V-ATPase peripheral stalk may play an important role in enzyme structure and regulation by reversible dissociation.
 
Crystal Structure of the Yeast Vacuolar ATPase Heterotrimeric EGC(head) Peripheral Stalk Complex.,Oot RA, Huang LS, Berry EA, Wilkens S Structure. 2012 Sep 18. pii: S0969-2126(12)00321-8. doi:, 10.1016/j.str.2012.08.020. PMID:23000382<ref>PMID:23000382</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4efa" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==

Latest revision as of 15:00, 14 March 2024

Crystal Structure of the Heterotrimeric EGChead Peripheral Stalk Complex of the Yeast Vacuolar ATPase - second conformation

4efa, resolution 2.82Å

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