2jk5

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<StructureSection load='2jk5' size='340' side='right'caption='[[2jk5]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
<StructureSection load='2jk5' size='340' side='right'caption='[[2jk5]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2jk5]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/"actinomyces_lividans"_krasil'nikov_et_al._1965 "actinomyces lividans" krasil'nikov et al. 1965] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JK5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JK5 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2jk5]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JK5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JK5 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=F09:NONAN-1-OL'>F09</scene>, <scene name='pdbligand=HP6:HEPTANE'>HP6</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=L2C:(2S)-3-HYDROXY-2-(NONANOYLOXY)PROPYL+LAURATE'>L2C</scene>, <scene name='pdbligand=TBA:TETRABUTYLAMMONIUM+ION'>TBA</scene></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">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1r3k|1r3k]], [[2a9h|2a9h]], [[1k4d|1k4d]], [[1k4c|1k4c]], [[2hg5|2hg5]], [[2bob|2bob]], [[1f6g|1f6g]], [[2boc|2boc]], [[1jq2|1jq2]], [[1r3j|1r3j]], [[1jvm|1jvm]], [[1jq1|1jq1]], [[2ih3|2ih3]], [[1zwi|1zwi]], [[1bl8|1bl8]], [[1r3i|1r3i]], [[2w0f|2w0f]], [[2ih1|2ih1]], [[1j95|1j95]], [[2h8p|2h8p]], [[1r3l|1r3l]], [[2atk|2atk]], [[4uuj|4uuj]]</div></td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=F09:NONAN-1-OL'>F09</scene>, <scene name='pdbligand=HP6:HEPTANE'>HP6</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=L2C:(2S)-3-HYDROXY-2-(NONANOYLOXY)PROPYL+LAURATE'>L2C</scene>, <scene name='pdbligand=TBA:TETRABUTYLAMMONIUM+ION'>TBA</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=2jk5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jk5 OCA], [https://pdbe.org/2jk5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2jk5 RCSB], [https://www.ebi.ac.uk/pdbsum/2jk5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2jk5 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=2jk5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jk5 OCA], [https://pdbe.org/2jk5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2jk5 RCSB], [https://www.ebi.ac.uk/pdbsum/2jk5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2jk5 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/KCSA_STRLI KCSA_STRLI]] Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+).<ref>PMID:7489706</ref>
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[https://www.uniprot.org/uniprot/KCSA_STRLI KCSA_STRLI] Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel, although it is not clear if this is the physiological stimulus for channel opening. Monovalent cation preference is K(+) > Rb(+) > NH4(+) >> Na(+) > Li(+).<ref>PMID:7489706</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Actinomyces lividans krasil'nikov et al. 1965]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Lk3 transgenic mice]]
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[[Category: Mus musculus]]
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[[Category: Focia, P J]]
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[[Category: Streptomyces lividans]]
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[[Category: Gross, A]]
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[[Category: Focia PJ]]
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[[Category: Lenaeus, M J]]
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[[Category: Gross A]]
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[[Category: Wagner, T]]
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[[Category: Lenaeus MJ]]
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[[Category: Immune system-metal transport complex]]
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[[Category: Wagner T]]
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[[Category: Ion transport]]
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[[Category: Ionic channel]]
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[[Category: Protein-antibody fab complex]]
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[[Category: Quaternary ammonium]]
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Revision as of 14:52, 13 December 2023

Potassium Channel KcsA in complex with Tetrabutylammonium in high K

PDB ID 2jk5

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