1j7e: Difference between revisions
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==A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein== | |||
<StructureSection load='1j7e' size='340' side='right'caption='[[1j7e]], [[Resolution|resolution]] 2.55Å' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1j7e]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1J7E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1J7E 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]] 2.55Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=JY:3-(2-{4-[2-(5-HYDROXY-2-METHYLENE-CYCLOHEXYLIDENE)-ETHYLIDENE]-7A-METHYL-OCTAHYDRO-INDEN-1-YL}-PROPYL)-PHENOL'>JY</scene>, <scene name='pdbligand=OLA:OLEIC+ACID'>OLA</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=1j7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1j7e OCA], [https://pdbe.org/1j7e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1j7e RCSB], [https://www.ebi.ac.uk/pdbsum/1j7e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1j7e 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/j7/1j7e_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=1j7e ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The human serum vitamin D-binding protein (DBP) has many physiologically important functions, ranging from transporting vitamin D3 metabolites, binding and sequestering globular actin and binding fatty acids to functioning in the immune system. Here we report the 2.3 A crystal structure of DBP in complex with 25-hydroxyvitamin D3, a vitamin D3 metabolite, which reveals the vitamin D-binding site in the N-terminal part of domain I. To more explicitly explore this, we also studied the structure of DBP in complex with a vitamin D3 analog. Comparisons with the structure of human serum albumin, another family member, reveal a similar topology but also significant differences in overall, as well as local, folding. These observed structural differences explain the unique vitamin D3-binding property of DBP. | The human serum vitamin D-binding protein (DBP) has many physiologically important functions, ranging from transporting vitamin D3 metabolites, binding and sequestering globular actin and binding fatty acids to functioning in the immune system. Here we report the 2.3 A crystal structure of DBP in complex with 25-hydroxyvitamin D3, a vitamin D3 metabolite, which reveals the vitamin D-binding site in the N-terminal part of domain I. To more explicitly explore this, we also studied the structure of DBP in complex with a vitamin D3 analog. Comparisons with the structure of human serum albumin, another family member, reveal a similar topology but also significant differences in overall, as well as local, folding. These observed structural differences explain the unique vitamin D3-binding property of DBP. | ||
A structural basis for the unique binding features of the human vitamin D-binding protein.,Verboven C, Rabijns A, De Maeyer M, Van Baelen H, Bouillon R, De Ranter C Nat Struct Biol. 2002 Feb;9(2):131-6. PMID:11799400<ref>PMID:11799400</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1j7e" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Bouillon R]] | |||
[[Category: Bouillon | [[Category: De Maeyer M]] | ||
[[Category: Maeyer | [[Category: De Ranter C]] | ||
[[Category: Rabijns A]] | |||
[[Category: Ranter | [[Category: Van Baelen H]] | ||
[[Category: | [[Category: Verboven C]] | ||
[[Category: | |||
[[Category: | |||
Latest revision as of 08:36, 16 August 2023
A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein
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