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==Open KcsA potassium channel in the presence of Rb+ ion==
==Open KcsA potassium channel in the presence of Rb+ ion==
<StructureSection load='3fb7' size='340' side='right' caption='[[3fb7]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
<StructureSection load='3fb7' size='340' side='right'caption='[[3fb7]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3fb7]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FB7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FB7 FirstGlance]. <br>
<table><tr><td colspan='2'>[[3fb7]] 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=3FB7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FB7 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=RB:RUBIDIUM+ION'>RB</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.3&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3f5w|3f5w]], [[3f7v|3f7v]], [[3f7y|3f7y]], [[3fb5|3fb5]], [[3fb6|3fb6]], [[3fb8|3fb8]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=RB:RUBIDIUM+ION'>RB</scene></td></tr>
<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 Streptomyces lividans])</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=3fb7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fb7 OCA], [https://pdbe.org/3fb7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fb7 RCSB], [https://www.ebi.ac.uk/pdbsum/3fb7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fb7 ProSAT]</span></td></tr>
<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=3fb7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fb7 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3fb7 RCSB], [http://www.ebi.ac.uk/pdbsum/3fb7 PDBsum]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[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>
[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]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fb/3fb7_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fb/3fb7_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3fb7 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>


==See Also==
==See Also==
*[[Antibody|Antibody]]
*[[Antibody 3D structures|Antibody 3D structures]]
*[[Potassium Channel|Potassium Channel]]
*[[Potassium channel 3D structures|Potassium channel 3D structures]]
*[[3D structures of non-human antibody|3D structures of non-human antibody]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Streptomyces lividans]]
[[Category: Streptomyces lividans]]
[[Category: Chakrapani, S]]
[[Category: Chakrapani S]]
[[Category: Cordero-Morales, J F]]
[[Category: Cordero-Morales JF]]
[[Category: Cortes, D M]]
[[Category: Cortes DM]]
[[Category: Cuello, L G]]
[[Category: Cuello LG]]
[[Category: Gagnon, D H]]
[[Category: Gagnon DH]]
[[Category: Jogini, V]]
[[Category: Jogini V]]
[[Category: Pan, A C]]
[[Category: Pan AC]]
[[Category: Perozo, E]]
[[Category: Perozo E]]
[[Category: Roux, B]]
[[Category: Roux B]]
[[Category: Cell membrane]]
[[Category: Inactivation]]
[[Category: Ion transport]]
[[Category: Ionic channel]]
[[Category: Kcsa]]
[[Category: Membrane]]
[[Category: Membrane protein-metal transport complex]]
[[Category: Open]]
[[Category: Potassium channel]]
[[Category: Transmembrane]]
[[Category: Transport]]
[[Category: Voltage-gated channel]]

Latest revision as of 01:48, 21 November 2024

Open KcsA potassium channel in the presence of Rb+ ion

3fb7, resolution 3.30Å

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