2k0e

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{{Large structure}}
 
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[[Image:2k0e.png|left|200px]]
 
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==A Coupled Equilibrium Shift Mechanism in Calmodulin-Mediated Signal Transduction==
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The line below this paragraph, containing "STRUCTURE_2k0e", creates the "Structure Box" on the page.
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<StructureSection load='2k0e' size='340' side='right'caption='[[2k0e]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2k0e]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K0E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2K0E FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=CA:CALCIUM+ION'>CA</scene></td></tr>
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{{STRUCTURE_2k0e| PDB=2k0e | SCENE= }}
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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=2k0e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k0e OCA], [https://pdbe.org/2k0e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2k0e RCSB], [https://www.ebi.ac.uk/pdbsum/2k0e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2k0e ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/CALM1_HUMAN CALM1_HUMAN] The disease is caused by mutations affecting the gene represented in this entry. Mutations in CALM1 are the cause of CPVT4. The disease is caused by mutations affecting the gene represented in this entry. Mutations in CALM1 are the cause of LQT14.
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== Function ==
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[https://www.uniprot.org/uniprot/CALM1_HUMAN CALM1_HUMAN] Calmodulin mediates the control of a large number of enzymes, ion channels, aquaporins and other proteins through calcium-binding. Among the enzymes to be stimulated by the calmodulin-calcium complex are a number of protein kinases and phosphatases. Together with CCP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis (PubMed:16760425). Mediates calcium-dependent inactivation of CACNA1C (PubMed:26969752). Positively regulates calcium-activated potassium channel activity of KCNN2 (PubMed:27165696).<ref>PMID:16760425</ref> <ref>PMID:23893133</ref> <ref>PMID:26969752</ref> <ref>PMID:27165696</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k0/2k0e_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=2k0e ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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We used nuclear magnetic resonance data to determine ensembles of conformations representing the structure and dynamics of calmodulin (CaM) in the calcium-bound state (Ca(2+)-CaM) and in the state bound to myosin light chain kinase (CaM-MLCK). These ensembles reveal that the Ca(2+)-CaM state includes a range of structures similar to those present when CaM is bound to MLCK. Detailed analysis of the ensembles demonstrates that correlated motions within the Ca(2+)-CaM state direct the structural fluctuations toward complex-like substates. This phenomenon enables initial ligation of MLCK at the C-terminal domain of CaM and induces a population shift among the substates accessible to the N-terminal domain, thus giving rise to the cooperativity associated with binding. Based on these results and the combination of modern free energy landscape theory with classical allostery models, we suggest that a coupled equilibrium shift mechanism controls the efficient binding of CaM to a wide range of ligands.
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===A Coupled Equilibrium Shift Mechanism in Calmodulin-Mediated Signal Transduction===
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A coupled equilibrium shift mechanism in calmodulin-mediated signal transduction.,Gsponer J, Christodoulou J, Cavalli A, Bui JM, Richter B, Dobson CM, Vendruscolo M Structure. 2008 May;16(5):736-46. PMID:18462678<ref>PMID:18462678</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_18462678}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 2k0e" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 18462678 is the PubMed ID number.
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{{ABSTRACT_PUBMED_18462678}}
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==About this Structure==
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[[2k0e]] is a 1 chain structure of [[Calmodulin]] with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K0E OCA].
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==See Also==
==See Also==
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*[[Calmodulin]]
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*[[Calmodulin 3D structures|Calmodulin 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:18462678</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Bui, J M.]]
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[[Category: Large Structures]]
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[[Category: Cavalli, A.]]
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[[Category: Bui JM]]
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[[Category: Christodoulou, J.]]
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[[Category: Cavalli A]]
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[[Category: Dobson, C M.]]
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[[Category: Christodoulou J]]
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[[Category: Gsponer, J.]]
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[[Category: Dobson CM]]
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[[Category: Richter, B.]]
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[[Category: Gsponer J]]
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[[Category: Vendruscolo, M.]]
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[[Category: Richter B]]
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[[Category: Binding]]
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[[Category: Vendruscolo M]]
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[[Category: Calcium binding]]
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[[Category: Ef hand]]
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[[Category: Ensemble]]
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[[Category: Helix bundle]]
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[[Category: Metal binding protein]]
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Current revision

A Coupled Equilibrium Shift Mechanism in Calmodulin-Mediated Signal Transduction

PDB ID 2k0e

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