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[[Image:1dmo.gif|left|200px]]
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{{STRUCTURE_1dmo|  PDB=1dmo  |  SCENE=  }}
'''CALMODULIN, NMR, 30 STRUCTURES'''


==CALMODULIN, NMR, 30 STRUCTURES==
<StructureSection load='1dmo' size='340' side='right'caption='[[1dmo]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1dmo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DMO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DMO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1dmo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dmo OCA], [https://pdbe.org/1dmo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dmo RCSB], [https://www.ebi.ac.uk/pdbsum/1dmo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dmo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CALM1_XENLA CALM1_XENLA] 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.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dm/1dmo_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </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/main_output.php?pdb_ID=1dmo ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The solution structure of Ca(2+)-free calmodulin has been determined by NMR spectroscopy, and is compared to the previously reported structure of the Ca(2+)-saturated form. The removal of Ca2+ causes the interhelical angles of four EF-hand motifs to increase by 36 degrees-44 degrees. This leads to major changes in surface properties, including the closure of the deep hydrophobic cavity essential for target protein recognition. Concerted movements of helices A and D with respect to B and C, and of helices E and H with respect to F and G are likely responsible for the cooperative Ca(2+)-binding property observed between two adjacent EF-hand sites in the amino- and carboxy-terminal domains.


==Overview==
Calcium-induced conformational transition revealed by the solution structure of apo calmodulin.,Zhang M, Tanaka T, Ikura M Nat Struct Biol. 1995 Sep;2(9):758-67. PMID:7552747<ref>PMID:7552747</ref>
The solution structure of Ca(2+)-free calmodulin has been determined by NMR spectroscopy, and is compared to the previously reported structure of the Ca(2+)-saturated form. The removal of Ca2+ causes the interhelical angles of four EF-hand motifs to increase by 36 degrees-44 degrees. This leads to major changes in surface properties, including the closure of the deep hydrophobic cavity essential for target protein recognition. Concerted movements of helices A and D with respect to B and C, and of helices E and H with respect to F and G are likely responsible for the cooperative Ca(2+)-binding property observed between two adjacent EF-hand sites in the amino- and carboxy-terminal domains.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1DMO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DMO OCA].
</div>
<div class="pdbe-citations 1dmo" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Calcium-induced conformational transition revealed by the solution structure of apo calmodulin., Zhang M, Tanaka T, Ikura M, Nat Struct Biol. 1995 Sep;2(9):758-67. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7552747 7552747]
*[[Calmodulin 3D structures|Calmodulin 3D structures]]
[[Category: Single protein]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Xenopus laevis]]
[[Category: Xenopus laevis]]
[[Category: Ikura, M.]]
[[Category: Ikura M]]
[[Category: Tanaka, T.]]
[[Category: Tanaka T]]
[[Category: Zhang, M.]]
[[Category: Zhang M]]
[[Category: Calcium-binding protein]]
[[Category: Calcium-induced conformational change]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 14:01:49 2008''

Latest revision as of 08:24, 22 May 2024

CALMODULIN, NMR, 30 STRUCTURES

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