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2zd9
From Proteopedia
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==Structure of a Bacterial Cyclic-Nucleotide Regulated Ion Channel== | ==Structure of a Bacterial Cyclic-Nucleotide Regulated Ion Channel== | ||
| - | <StructureSection load='2zd9' size='340' side='right' caption='[[2zd9]], [[Resolution|resolution]] 4.00Å' scene=''> | + | <StructureSection load='2zd9' size='340' side='right'caption='[[2zd9]], [[Resolution|resolution]] 4.00Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2zd9]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2zd9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mesorhizobium_loti Mesorhizobium loti]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZD9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZD9 FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 4Å</td></tr> |
| - | <tr id=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2zd9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zd9 OCA], [https://pdbe.org/2zd9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zd9 RCSB], [https://www.ebi.ac.uk/pdbsum/2zd9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zd9 ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == 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]] | ||
| Line 20: | Line 20: | ||
</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=2zd9 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=2zd9 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | The six-transmembrane helix (6 TM) tetrameric cation channels form the largest ion channel family, some members of which are voltage-gated and others are not. There are no reported channel structures to match the wealth of functional data on the non-voltage-gated members. We determined the structure of the transmembrane regions of the bacterial cyclic nucleotide-regulated channel MlotiK1, a non-voltage-gated 6 TM channel. The structure showed how the S1-S4 domain and its associated linker can serve as a clamp to constrain the gate of the pore and possibly function in concert with ligand-binding domains to regulate the opening of the pore. The structure also led us to hypothesize a new mechanism by which motions of the S6 inner helices can gate the ion conduction pathway at a position along the pore closer to the selectivity filter than the canonical helix bundle crossing. | ||
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| - | Structure of the transmembrane regions of a bacterial cyclic nucleotide-regulated channel.,Clayton GM, Altieri S, Heginbotham L, Unger VM, Morais-Cabral JH Proc Natl Acad Sci U S A. 2008 Feb 5;105(5):1511-5. Epub 2008 Jan 23. PMID:18216238<ref>PMID:18216238</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 2zd9" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
| - | *[[Ion channels|Ion channels]] | + | *[[Ion channels 3D structures|Ion channels 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Mesorhizobium loti]] |
| - | [[Category: | + | [[Category: Cabral-Morais JM]] |
| - | [[Category: | + | [[Category: Clayton GM]] |
| - | + | ||
Current revision
Structure of a Bacterial Cyclic-Nucleotide Regulated Ion Channel
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