2ih3

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==Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation==
==Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation==
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<StructureSection load='2ih3' size='340' side='right' caption='[[2ih3]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
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<StructureSection load='2ih3' size='340' side='right'caption='[[2ih3]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2ih3]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/"actinomyces_lividans"_krasil'nikov_et_al._1965 "actinomyces lividans" krasil'nikov et al. 1965] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IH3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2IH3 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2ih3]] 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/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IH3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IH3 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=1EM:(1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL+MYRISTATE'>1EM</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
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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=1EM:(1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL+MYRISTATE'>1EM</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAL:D-ALANINE'>DAL</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAL:D-ALANINE'>DAL</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ih1|2ih1]]</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;'>[[2ih1|2ih1]]</div></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">kcsA, skc1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1916 "Actinomyces lividans" Krasil'nikov et al. 1965])</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">kcsA, skc1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1916 "Actinomyces lividans" Krasil'nikov et al. 1965])</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=2ih3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ih3 OCA], [http://pdbe.org/2ih3 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ih3 RCSB], [http://www.ebi.ac.uk/pdbsum/2ih3 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2ih3 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=2ih3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ih3 OCA], [https://pdbe.org/2ih3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ih3 RCSB], [https://www.ebi.ac.uk/pdbsum/2ih3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ih3 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://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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==See Also==
==See Also==
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
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*[[Potassium Channel|Potassium Channel]]
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*[[Potassium channel 3D structures|Potassium channel 3D structures]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Actinomyces lividans krasil'nikov et al. 1965]]
[[Category: Actinomyces lividans krasil'nikov et al. 1965]]
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Leonetti, M]]
[[Category: Leonetti, M]]

Revision as of 11:15, 31 March 2021

Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation

PDB ID 2ih3

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