2dg2
From Proteopedia
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==Crystal Structure of Mouse Apolipoprotein A-I Binding Protein== | ==Crystal Structure of Mouse Apolipoprotein A-I Binding Protein== | ||
<StructureSection load='2dg2' size='340' side='right' caption='[[2dg2]], [[Resolution|resolution]] 2.45Å' scene=''> | <StructureSection load='2dg2' size='340' side='right' caption='[[2dg2]], [[Resolution|resolution]] 2.45Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2dg2]] is a 6 chain structure | + | <table><tr><td colspan='2'>[[2dg2]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DG2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2DG2 FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=2dg2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dg2 OCA], [http://pdbe.org/2dg2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2dg2 RCSB], [http://www.ebi.ac.uk/pdbsum/2dg2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2dg2 ProSAT]</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=2dg2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dg2 OCA], [http://pdbe.org/2dg2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2dg2 RCSB], [http://www.ebi.ac.uk/pdbsum/2dg2 PDBsum]</span></td></tr> | + | |
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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</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=2dg2 ConSurf]. | </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=2dg2 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The physiological changes that sperm undergo in the female reproductive tract rendering them fertilization-competent constitute the phenomenon of capacitation. Cholesterol efflux from the sperm surface and protein kinase A (PKA)-dependent phosphorylation play major regulatory roles in capacitation, but the link between these two phenomena is unknown. We report that apolipoprotein A-I binding protein (AI-BP) is phosphorylated downstream to PKA activation, localizes to both sperm head and tail domains, and is released from the sperm into the media during in vitro capacitation. AI-BP interacts with apolipoprotein A-I, the component of high-density lipoprotein involved in cholesterol transport. The crystal structure demonstrates that the subunit of the AI-BP homodimer has a Rossmann-like fold. The protein surface has a large two compartment cavity lined with conserved residues. This cavity is likely to constitute an active site, suggesting that AI-BP functions as an enzyme. The presence of AI-BP in sperm, its phosphorylation by PKA, and its release during capacitation suggest that AI-BP plays an important role in capacitation possibly providing a link between protein phosphorylation and cholesterol efflux. | ||
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| + | Biochemical and structural characterization of apolipoprotein A-I binding protein, a novel phosphoprotein with a potential role in sperm capacitation.,Jha KN, Shumilin IA, Digilio LC, Chertihin O, Zheng H, Schmitz G, Visconti PE, Flickinger CJ, Minor W, Herr JC Endocrinology. 2008 May;149(5):2108-20. Epub 2008 Jan 17. PMID:18202122<ref>PMID:18202122</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 2dg2" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: Lk3 transgenic mice]] | ||
[[Category: Chruszcz, M]] | [[Category: Chruszcz, M]] | ||
[[Category: Cymborowski, M]] | [[Category: Cymborowski, M]] | ||
Revision as of 06:30, 19 April 2017
Crystal Structure of Mouse Apolipoprotein A-I Binding Protein
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