1ctd: Difference between revisions

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[[Image:1ctd.png|left|200px]]
==DETERMINATION OF THE SOLUTION STRUCTURE OF A SYNTHETIC TWO-SITE CALCIUM-BINDING HOMODIMERIC PROTEIN DOMAIN BY NMR SPECTROSCOPY==
<StructureSection load='1ctd' size='340' side='right' caption='[[1ctd]], [[NMR_Ensembles_of_Models | 7 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1ctd]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CTD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1CTD FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene><br>
<tr><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=NH2:AMINO+GROUP'>NH2</scene></td></tr>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cta|1cta]]</td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ctd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ctd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1ctd RCSB], [http://www.ebi.ac.uk/pdbsum/1ctd PDBsum]</span></td></tr>
<table>
== 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/ct/1ctd_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The solution structure of a 34-residue synthetic calcium-binding peptide from site III of chicken troponin-C has been determined by 1H NMR spectroscopy. In solution and in the presence of calcium this peptide forms a symmetric two-site homodimeric calcium-binding domain (Shaw et al., 1990). The solution structure of this dimer was determined from the measurement of 470 NOEs from a 75-ms NOESY data set. For the dimer structure determination, the constraint list included 868 distance restraints, 44 phi angles, and 24 chi 1 and 2 chi 2 angles. Seven structures were calculated by restrained molecular dynamics using a procedure in which intramonomer distances were used first and then all distances, intra- and intermonomer, were input during further dynamics. The structures exhibited a fold very similar to the C-terminal domain of troponin-C comprised of a pair of helix-loop-helix calcium-binding sites. The rms deviation of these structures for backbone atoms between residues 97-122 and 97'-122' for the dimer was 0.82 A. The dimer structure was also calculated to be more symmetric than sites III and IV in troponin-C.


{{STRUCTURE_1ctd|  PDB=1ctd  |  SCENE=  }}
Determination of the solution structure of a synthetic two-site calcium-binding homodimeric protein domain by NMR spectroscopy.,Shaw GS, Hodges RS, Sykes BD Biochemistry. 1992 Oct 13;31(40):9572-80. PMID:1390738<ref>PMID:1390738</ref>


===DETERMINATION OF THE SOLUTION STRUCTURE OF A SYNTHETIC TWO-SITE CALCIUM-BINDING HOMODIMERIC PROTEIN DOMAIN BY NMR SPECTROSCOPY===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_1390738}}
 
==About this Structure==
[[1ctd]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CTD OCA].


==See Also==
==See Also==
*[[Troponin|Troponin]]
*[[Troponin|Troponin]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:001390738</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Shaw, G S.]]
[[Category: Shaw, G S.]]
[[Category: Sykes, B D.]]
[[Category: Sykes, B D.]]
[[Category: Muscle protein]]
[[Category: Muscle protein]]

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