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==Crystal structure of bovine brain Ca++ calmodulin in a compact form==
==Crystal structure of bovine brain Ca++ calmodulin in a compact form==
<StructureSection load='1prw' size='340' side='right' caption='[[1prw]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
<StructureSection load='1prw' size='340' side='right'caption='[[1prw]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1prw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PRW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PRW FirstGlance]. <br>
<table><tr><td colspan='2'>[[1prw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PRW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PRW FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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]] 1.7&#8491;</td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cln|1cln]], [[1cdl|1cdl]], [[1cdm|1cdm]]</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=1prw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1prw OCA], [https://pdbe.org/1prw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1prw RCSB], [https://www.ebi.ac.uk/pdbsum/1prw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1prw 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=1prw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1prw OCA], [http://pdbe.org/1prw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1prw RCSB], [http://www.ebi.ac.uk/pdbsum/1prw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1prw ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CALM_BOVIN CALM_BOVIN]] Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases. Together with CEP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis (By similarity).  
[https://www.uniprot.org/uniprot/CALM_BOVIN CALM_BOVIN] Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases. Together with CEP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1prw 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=1prw ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Calmodulin has been a subject of intense scrutiny since its discovery because of its unusual properties in regulating the functions of about 100 diverse target enzymes and structural proteins. The original and to date only crystal conformation of native eukaryotic Ca(2+)-calmodulin (Ca(2+)-CaM) is a very extended molecule with two widely separated globular domains linked by an exposed long helix. Here we report the 1.7 A X-ray structure of a new native Ca(2+)-CaM that is in a compact ellipsoidal conformation and shows a sharp bend in the linker helix and a more contracted N-terminal domain. This conformation may offer advantages for recognition of kinase-type calmodulin targets or small organic molecule drugs.
A closed compact structure of native Ca(2+)-calmodulin.,Fallon JL, Quiocho FA Structure. 2003 Oct;11(10):1303-7. PMID:14527397<ref>PMID:14527397</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1prw" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[EF hand|EF hand]]
*[[Calmodulin|Calmodulin]]
== References ==
*[[Calmodulin 3D structures|Calmodulin 3D structures]]
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Fallon, J L]]
[[Category: Large Structures]]
[[Category: Quiocho, F A]]
[[Category: Fallon JL]]
[[Category: Calcium-binding protein]]
[[Category: Quiocho FA]]
[[Category: Ef hand]]
[[Category: Kinase activator]]
[[Category: Metal binding protein]]

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