1ma9
From Proteopedia
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| - | [[Image:1ma9.jpg|left|200px]] | ||
| - | + | ==Crystal structure of the complex of human vitamin D binding protein and rabbit muscle actin== | |
| - | + | <StructureSection load='1ma9' size='340' side='right'caption='[[1ma9]], [[Resolution|resolution]] 2.40Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | | | + | <table><tr><td colspan='2'>[[1ma9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MA9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MA9 FirstGlance]. <br> |
| - | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4Å</td></tr> | |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=1ma9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ma9 OCA], [https://pdbe.org/1ma9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ma9 RCSB], [https://www.ebi.ac.uk/pdbsum/1ma9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ma9 ProSAT]</span></td></tr> | |
| - | + | </table> | |
| - | + | == Function == | |
| - | + | [https://www.uniprot.org/uniprot/VTDB_HUMAN VTDB_HUMAN] Multifunctional protein found in plasma, ascitic fluid, cerebrospinal fluid, and urine and on the surface of many cell types. In plasma, it carries the vitamin D sterols and prevents polymerization of actin by binding its monomers. DBP associates with membrane-bound immunoglobulin on the surface of B-lymphocytes and with IgG Fc receptor on the membranes of T-lymphocytes. | |
| + | == 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/ma/1ma9_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1ma9 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The multifunctional vitamin D binding protein (DBP) is an actin-sequestering protein present in blood. The crystal structure of the actin-DBP complex was determined at 2.4 A resolution. DBP binds to actin subdomains 1 and 3 and occludes the cleft at the interface between these subdomains. Most remarkably, DBP demonstrates an unusually large actin-binding interface, far exceeding the binding-interface areas reported for other actin-binding proteins such as profilin, DNase I and gelsolin. The fast-growing side of actin monomers is blocked completely through a perfect structural fit with DBP, demonstrating how DBP effectively interferes with actin-filament formation. It establishes DBP as the hitherto best actin-sequestering protein and highlights its key role in suppressing and preventing extracellular actin polymerization. | ||
| - | + | Actin-DBP: the perfect structural fit?,Verboven C, Bogaerts I, Waelkens E, Rabijns A, Van Baelen H, Bouillon R, De Ranter C Acta Crystallogr D Biol Crystallogr. 2003 Feb;59(Pt 2):263-73. Epub 2003, Jan 23. PMID:12554937<ref>PMID:12554937</ref> | |
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 1ma9" style="background-color:#fffaf0;"></div> | ||
| - | == | + | ==See Also== |
| - | + | *[[Actin 3D structures|Actin 3D structures]] | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
| - | == | + | |
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[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Oryctolagus cuniculus]] | [[Category: Oryctolagus cuniculus]] | ||
| - | [[Category: | + | [[Category: Bogaerts I]] |
| - | [[Category: | + | [[Category: Bouillon R]] |
| - | [[Category: | + | [[Category: De Ranter C]] |
| - | + | [[Category: Rabijns A]] | |
| - | [[Category: Rabijns | + | [[Category: Van Baelen H]] |
| - | [[Category: | + | [[Category: Verboven C]] |
| - | [[Category: Verboven | + | [[Category: Waelkens E]] |
| - | [[Category: Waelkens | + | |
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Current revision
Crystal structure of the complex of human vitamin D binding protein and rabbit muscle actin
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