6o1u

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Current revision (09:22, 20 March 2024) (edit) (undo)
 
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<SX load='6o1u' size='340' side='right' viewer='molstar' caption='[[6o1u]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
<SX load='6o1u' size='340' side='right' viewer='molstar' caption='[[6o1u]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6o1u]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/European_rabbit European rabbit]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O1U OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6O1U FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6o1u]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6O1U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6O1U FirstGlance]. <br>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Trpv5, Ecac1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9986 European rabbit])</td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6o1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o1u OCA], [http://pdbe.org/6o1u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6o1u RCSB], [http://www.ebi.ac.uk/pdbsum/6o1u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6o1u ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6o1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6o1u OCA], [https://pdbe.org/6o1u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6o1u RCSB], [https://www.ebi.ac.uk/pdbsum/6o1u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6o1u ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/TRPV5_RABIT TRPV5_RABIT]] Constitutively active calcium selective cation channel thought to be involved in Ca(2+) reabsorption in kidney and intestine (PubMed:12574114). Required for normal Ca(2+) reabsorption in the kidney distal convoluted tubules (By similarity). The channel is activated by low internal calcium level and the current exhibits an inward rectification (By similarity). A Ca(2+)-dependent feedback regulation includes fast channel inactivation and slow current decay (By similarity). Heteromeric assembly with TRPV6 seems to modify channel properties. TRPV5-TRPV6 heteromultimeric concatemers exhibit voltage-dependent gating (PubMed:12574114).[UniProtKB:P69744][UniProtKB:Q9NQA5]<ref>PMID:10085067</ref> <ref>PMID:11035011</ref> <ref>PMID:12574114</ref>
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[https://www.uniprot.org/uniprot/TRPV5_RABIT TRPV5_RABIT] Constitutively active calcium selective cation channel thought to be involved in Ca(2+) reabsorption in kidney and intestine (PubMed:12574114). Required for normal Ca(2+) reabsorption in the kidney distal convoluted tubules (By similarity). The channel is activated by low internal calcium level and the current exhibits an inward rectification (By similarity). A Ca(2+)-dependent feedback regulation includes fast channel inactivation and slow current decay (By similarity). Heteromeric assembly with TRPV6 seems to modify channel properties. TRPV5-TRPV6 heteromultimeric concatemers exhibit voltage-dependent gating (PubMed:12574114).[UniProtKB:P69744][UniProtKB:Q9NQA5]<ref>PMID:10085067</ref> <ref>PMID:11035011</ref> <ref>PMID:12574114</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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TRPV5 (transient receptor potential vanilloid 5) is a unique calcium-selective TRP channel essential for calcium homeostasis. Unlike other TRPV channels, TRPV5 and its close homolog, TRPV6, do not exhibit thermosensitivity or ligand-dependent activation but are constitutively open at physiological membrane potentials and modulated by calmodulin (CaM) in a calcium-dependent manner. Here we report high-resolution electron cryomicroscopy structures of truncated and full-length TRPV5 in lipid nanodiscs, as well as of a TRPV5 W583A mutant and TRPV5 in complex with CaM. These structures highlight the mechanism of calcium regulation and reveal a flexible stoichiometry of CaM binding to TRPV5.
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Structural insight into TRPV5 channel function and modulation.,Dang S, van Goor MK, Asarnow D, Wang Y, Julius D, Cheng Y, van der Wijst J Proc Natl Acad Sci U S A. 2019 Apr 11. pii: 1820323116. doi:, 10.1073/pnas.1820323116. PMID:30975749<ref>PMID:30975749</ref>
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==See Also==
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*[[Ion channels 3D structures|Ion channels 3D structures]]
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 6o1u" style="background-color:#fffaf0;"></div>
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== References ==
== References ==
<references/>
<references/>
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__TOC__
</SX>
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[[Category: European rabbit]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Asarnow, D]]
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[[Category: Oryctolagus cuniculus]]
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[[Category: Cheng, Y]]
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[[Category: Asarnow D]]
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[[Category: Dang, S]]
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[[Category: Cheng Y]]
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[[Category: Goor, M K.van]]
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[[Category: Dang S]]
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[[Category: Julius, D]]
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[[Category: Julius D]]
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[[Category: Wang, Y]]
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[[Category: Wang Y]]
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[[Category: Wijst, J van der]]
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[[Category: Van Goor MK]]
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[[Category: Ion channel]]
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[[Category: Van der Wijst J]]
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[[Category: Membrane protein]]
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[[Category: Trp channel]]
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Current revision

Cryo-EM structure of TRPV5 W583A in nanodisc

6o1u, resolution 2.80Å

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OCA

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