1kqv: Difference between revisions
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==Family of NMR Solution Structures of Ca Ln Calbindin D9K== | ==Family of NMR Solution Structures of Ca Ln Calbindin D9K== | ||
<StructureSection load='1kqv' size='340' side='right' caption='[[1kqv]], [[NMR_Ensembles_of_Models | 30 NMR models]]' scene=''> | <StructureSection load='1kqv' size='340' side='right' caption='[[1kqv]], [[NMR_Ensembles_of_Models | 30 NMR models]]' scene=''> | ||
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LA:LANTHANUM+(III)+ION'>LA</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LA:LANTHANUM+(III)+ION'>LA</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1k31|1k31]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1k31|1k31]]</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=1kqv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kqv OCA], [http://pdbe.org/1kqv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1kqv RCSB], [http://www.ebi.ac.uk/pdbsum/1kqv PDBsum]</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=1kqv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kqv OCA], [http://pdbe.org/1kqv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1kqv RCSB], [http://www.ebi.ac.uk/pdbsum/1kqv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1kqv ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kq/1kqv_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kq/1kqv_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1kqv" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1kqv" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 00:29, 25 January 2018
Family of NMR Solution Structures of Ca Ln Calbindin D9KFamily of NMR Solution Structures of Ca Ln Calbindin D9K
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe relative importance of paramagnetism-based constraints (i.e. pseudocontact shifts, residual dipolar couplings and nuclear relaxation enhancements) with respect to classical constraints in solution structure determinations of paramagnetic metalloproteins has been addressed. The protein selected for the study is a calcium binding protein, calbindin D9k, in which one of the two calcium ions is substituted with cerium(III). From 1823 NOEs, 191 dihedral angles, 15 hydrogen bonds, 769 pseudocontact shifts, 64 orientational constraints, 26 longitudinal relaxation rates, plus 969 pseudocontact shifts from other lanthanides, a final family with backbone r.m.s.d. from the average of 0.25 A was obtained. Then, several families of structures were generated either by removing subsets of paramagnetism-based constraints or by removing increasing numbers of NOEs. The results show the relative importance of the various paramagnetism-based constraints and their good complementarity with the diamagnetic ones. Although a resolved structure cannot be obtained with paramagnetism-based constraints only, it is shown that a reasonably well resolved backbone fold can be safely obtained by retaining as few as 29 randomly chosen long-range NOEs using the standard version of the program PSEUDYANA. Paramagnetism-based versus classical constraints: an analysis of the solution structure of Ca Ln calbindin D9k.,Bertini I, Donaire A, Jimenez B, Luchinat C, Parigi G, Piccioli M, Poggi L J Biomol NMR. 2001 Oct;21(2):85-98. PMID:11727989[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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