3csn
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 3csn is ON HOLD until Paper Publication Authors: Krieg, S., Diederichs, K. Description: Structure of the Serratia marcescens hemophore receptor Has...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of the Serratia marcescens hemophore receptor HasR in complex with its hemophore HasA== | |
| + | <StructureSection load='3csn' size='340' side='right'caption='[[3csn]], [[Resolution|resolution]] 3.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3csn]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Serratia_marcescens Serratia marcescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CSN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CSN 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]] 3Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</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=3csn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3csn OCA], [https://pdbe.org/3csn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3csn RCSB], [https://www.ebi.ac.uk/pdbsum/3csn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3csn ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/Q79AD2_SERMA Q79AD2_SERMA] | ||
| + | == 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/cs/3csn_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=3csn ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Gram-negative bacteria use specific heme uptake systems, relying on outer membrane receptors and excreted heme-binding proteins (hemophores) to scavenge and actively transport heme. To unravel the unknown molecular details involved, we present 3 structures of the Serratia marcescens receptor HasR in complex with its hemophore HasA. The transfer of heme over a distance of 9 A from its high-affinity site in HasA into a site of lower affinity in HasR is coupled with the exergonic complex formation of the 2 proteins. Upon docking to the receptor, 1 of the 2 axial heme coordinations of the hemophore is initially broken, but the position and orientation of the heme is preserved. Subsequently, steric displacement of heme by a receptor residue ruptures the other axial coordination, leading to heme transfer into the receptor. | ||
| - | + | Heme uptake across the outer membrane as revealed by crystal structures of the receptor-hemophore complex.,Krieg S, Huche F, Diederichs K, Izadi-Pruneyre N, Lecroisey A, Wandersman C, Delepelaire P, Welte W Proc Natl Acad Sci U S A. 2009 Jan 27;106(4):1045-50. Epub 2009 Jan 14. PMID:19144921<ref>PMID:19144921</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 3csn" style="background-color:#fffaf0;"></div> | |
| - | + | == References == | |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Serratia marcescens]] | ||
| + | [[Category: Diederichs K]] | ||
| + | [[Category: Krieg S]] | ||
Current revision
Structure of the Serratia marcescens hemophore receptor HasR in complex with its hemophore HasA
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