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4ia4

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{{STRUCTURE_4ia4| PDB=4ia4 | SCENE= }}
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==Structure of the spinach aquaporin SoPIP2;1 at pH 6==
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===Structure of the spinach aquaporin SoPIP2;1 at pH 6===
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<StructureSection load='4ia4' size='340' side='right' caption='[[4ia4]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
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{{ABSTRACT_PUBMED_23454640}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4ia4]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IA4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IA4 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1z98|1z98]], [[2b5f|2b5f]], [[3cll|3cll]], [[3cn5|3cn5]], [[3cn6|3cn6]]</td></tr>
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<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=4ia4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ia4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4ia4 RCSB], [http://www.ebi.ac.uk/pdbsum/4ia4 PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Plants have evolved to cope with fluctuations in water supply by gating their water channels known as aquaporins. During flooding, a rapid drop of cytosolic pH due to anoxia leads to a simultaneous closure of the aquaporins in the plasma membrane. The closing mechanism has been suggested to involve a conserved histidine on cytosolic loop D. Here we report the crystal structure of a spinach aquaporin at low pH, revealing for the first time the structural basis for how this pH-sensitive histidine helps to keep the aquaporin in a closed state.
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==About this Structure==
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Structural basis for pH gating of plant aquaporins.,Frick A, Jarva M, Tornroth-Horsefield S FEBS Lett. 2013 Apr 2;587(7):989-93. doi: 10.1016/j.febslet.2013.02.038. Epub, 2013 Feb 27. PMID:23454640<ref>PMID:23454640</ref>
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[[4ia4]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IA4 OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:023454640</ref><references group="xtra"/><references/>
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</div>
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==See Also==
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*[[Aquaporin|Aquaporin]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Spinacia oleracea]]
[[Category: Spinacia oleracea]]
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[[Category: Frick, A.]]
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[[Category: Frick, A]]
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[[Category: Jarva, M.]]
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[[Category: Jarva, M]]
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[[Category: Tornroth-Horsefield, S.]]
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[[Category: Tornroth-Horsefield, S]]
[[Category: Aquaporin]]
[[Category: Aquaporin]]
[[Category: Integral membrane protein]]
[[Category: Integral membrane protein]]
[[Category: Transport protein]]
[[Category: Transport protein]]
[[Category: Water channel protein]]
[[Category: Water channel protein]]

Revision as of 12:12, 21 December 2014

Structure of the spinach aquaporin SoPIP2;1 at pH 6

4ia4, resolution 3.10Å

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