This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
6whg
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
==PI3P and calcium bound full-length TRPY1 in detergent== | ==PI3P and calcium bound full-length TRPY1 in detergent== | ||
| - | <StructureSection load='6whg' size='340' side='right'caption='[[6whg]]' scene=''> | + | <StructureSection load='6whg' size='340' side='right'caption='[[6whg]], [[Resolution|resolution]] 3.10Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WHG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WHG FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6whg]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WHG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WHG FirstGlance]. <br> |
| - | </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=6whg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6whg OCA], [https://pdbe.org/6whg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6whg RCSB], [https://www.ebi.ac.uk/pdbsum/6whg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6whg ProSAT]</span></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=PWE:(2R)-1-(butanoyloxy)-3-{[(R)-hydroxy{[(1S,2S,3S,4S,5S,6R)-2,3,4,6-tetrahydroxy-5-(phosphonooxy)cyclohexyl]oxy}phosphoryl]oxy}propan-2-yl+hexadecanoate'>PWE</scene></td></tr> |
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">YVC1, YOR087W, YOR088W, YOR3151W ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=6whg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6whg OCA], [https://pdbe.org/6whg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6whg RCSB], [https://www.ebi.ac.uk/pdbsum/6whg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6whg ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [[https://www.uniprot.org/uniprot/YVC1_YEAST YVC1_YEAST]] Required for release of calcium ions from the vacuole in response to hyperosmotic shock.<ref>PMID:11427713</ref> <ref>PMID:11781332</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Transient receptor potential (TRP) channels emerged in fungi as mechanosensitive osmoregulators. The Saccharomyces cerevisiae vacuolar TRP yeast 1 (TRPY1) is the most studied TRP channel from fungi, but the structure and details of channel modulation remain elusive. Here, we describe the full-length cryoelectron microscopy structure of TRPY1 at 3.1 A resolution in a closed state. The structure, despite containing an evolutionarily conserved and archetypical transmembrane domain, reveals distinctive structural folds for the cytosolic N and C termini, compared with other eukaryotic TRP channels. We identify an inhibitory phosphatidylinositol 3-phosphate (PI(3)P) lipid-binding site, along with two Ca(2+)-binding sites: a cytosolic site, implicated in channel activation and a vacuolar lumen site, implicated in inhibition. These findings, together with data from microsecond-long molecular dynamics simulations and a model of a TRPY1 open state, provide insights into the basis of TRPY1 channel modulation by lipids and Ca(2+), and the molecular evolution of TRP channels. | ||
| + | |||
| + | Structure of the ancient TRPY1 channel from Saccharomyces cerevisiae reveals mechanisms of modulation by lipids and calcium.,Ahmed T, Nisler CR, Fluck EC 3rd, Walujkar S, Sotomayor M, Moiseenkova-Bell VY Structure. 2021 Aug 24. pii: S0969-2126(21)00298-7. doi:, 10.1016/j.str.2021.08.003. PMID:34453887<ref>PMID:34453887</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 6whg" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Atcc 18824]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: Ahmed T]] | + | [[Category: Ahmed, T]] |
| - | [[Category: Moiseenkova-Bell | + | [[Category: Moiseenkova-Bell, V Y]] |
| + | [[Category: Ion channel]] | ||
| + | [[Category: Membrane protein]] | ||
Revision as of 15:54, 3 November 2021
PI3P and calcium bound full-length TRPY1 in detergent
| |||||||||||
