1u12: Difference between revisions

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==M. loti cyclic nucleotide binding domain mutant==
==M. loti cyclic nucleotide binding domain mutant==
<StructureSection load='1u12' size='340' side='right' caption='[[1u12]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
<StructureSection load='1u12' size='340' side='right'caption='[[1u12]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1u12]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mesorhizobium_loti Mesorhizobium loti]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U12 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U12 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1u12]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mesorhizobium_japonicum_MAFF_303099 Mesorhizobium japonicum MAFF 303099]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U12 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1U12 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.7&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pf0|1pf0]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=1u12 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u12 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1u12 RCSB], [http://www.ebi.ac.uk/pdbsum/1u12 PDBsum]</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=1u12 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u12 OCA], [https://pdbe.org/1u12 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1u12 RCSB], [https://www.ebi.ac.uk/pdbsum/1u12 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1u12 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CNGK1_RHILO CNGK1_RHILO] Cyclic nucleotide-regulated potassium channel activated by cAMP.<ref>PMID:15550244</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/u1/1u12_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/u1/1u12_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1u12 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Here we describe the initial functional characterization of a cyclic nucleotide regulated ion channel from the bacterium Mesorhizobium loti and present two structures of its cyclic nucleotide binding domain, with and without cAMP. The domains are organized as dimers with the interface formed by the linker regions that connect the nucleotide binding pocket to the pore domain. Together, structural and functional data suggest the domains form two dimers on the cytoplasmic face of the channel. We propose a model for gating in which ligand binding alters the structural relationship within a dimer, directly affecting the position of the adjacent transmembrane helices.
Structural basis of ligand activation in a cyclic nucleotide regulated potassium channel.,Clayton GM, Silverman WR, Heginbotham L, Morais-Cabral JH Cell. 2004 Nov 24;119(5):615-27. PMID:15550244<ref>PMID:15550244</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
==See Also==
</div>
*[[Ion channels 3D structures|Ion channels 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Mesorhizobium loti]]
[[Category: Large Structures]]
[[Category: Clayton, G M]]
[[Category: Mesorhizobium japonicum MAFF 303099]]
[[Category: Heginbotham, L]]
[[Category: Clayton GM]]
[[Category: Morais-Cabral, J H]]
[[Category: Heginbotham L]]
[[Category: Silverman, W R]]
[[Category: Morais-Cabral JH]]
[[Category: C-helix mutation]]
[[Category: Silverman WR]]
[[Category: Membrane protein]]
[[Category: Mutant cyclic nucleotide binding domain]]
[[Category: Unliganded]]

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