2hn2: Difference between revisions
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<StructureSection load='2hn2' size='340' side='right'caption='[[2hn2]], [[Resolution|resolution]] 3.70Å' scene=''> | <StructureSection load='2hn2' size='340' side='right'caption='[[2hn2]], [[Resolution|resolution]] 3.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2hn2]] is a 5 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2hn2]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43589 Atcc 43589]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HN2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HN2 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></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></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2bbj|2bbj]], [[2bbh|2bbh]], [[2hn1|2hn1]], [[2iub|2iub]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2bbj|2bbj]], [[2bbh|2bbh]], [[2hn1|2hn1]], [[2iub|2iub]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CorA ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CorA ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2336 ATCC 43589])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2hn2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hn2 OCA], [https://pdbe.org/2hn2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hn2 RCSB], [https://www.ebi.ac.uk/pdbsum/2hn2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hn2 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/CORA_THEMA CORA_THEMA]] Mediates influx of magnesium ions (By similarity). | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Revision as of 20:26, 15 December 2021
Crystal structure of the CorA Mg2+ transporter homologue from T. maritima in complex with divalent cationsCrystal structure of the CorA Mg2+ transporter homologue from T. maritima in complex with divalent cations
Structural highlights
Function[CORA_THEMA] Mediates influx of magnesium ions (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedWe describe the CorA Mg(2+) transporter homologue from Thermotoga maritima in complex with 12 divalent cations at 3.7 A resolution. One metal is found near the universally conserved GMN motif, apparently stabilized within the transmembrane region. This portion of the selectivity filter might discriminate between the size and preferred coordination geometry of hydrated substrates. CorA may further achieve specificity by requiring the sequential dehydration of substrates along the length of its approximately 55 A long pore. Ten metal sites identified within the cytoplasmic funnel domain are linked to long extensions of the pore helices and regulate the transport status of CorA. We have characterized this region as an intrinsic divalent cation sensor and provide evidence that it functions as a Mg(2+)-specific homeostatic molecular switch. A proteolytic protection assay, biophysical data, and comparison to a soluble domain structure from Archaeoglobus fulgidus have revealed the potential reaction coordinate for this diverse family of transport proteins. A structural basis for Mg2+ homeostasis and the CorA translocation cycle.,Payandeh J, Pai EF EMBO J. 2006 Aug 23;25(16):3762-73. Epub 2006 Aug 10. PMID:16902408[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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