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| | ==Solution structure of opa60 from n. gonorrhoeae== | | ==Solution structure of opa60 from n. gonorrhoeae== |
| - | <StructureSection load='2maf' size='340' side='right' caption='[[2maf]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2maf' size='340' side='right'caption='[[2maf]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2maf]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"diplococcus_gonorrhoeae"_(zopf_1885)_lehmann_and_neumann_1896 "diplococcus gonorrhoeae" (zopf 1885) lehmann and neumann 1896]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2MAF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2MAF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2maf]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Neisseria_gonorrhoeae Neisseria gonorrhoeae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2MAF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2MAF FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">opaH, opaI ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=485 "Diplococcus gonorrhoeae" (Zopf 1885) Lehmann and Neumann 1896])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2maf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2maf OCA], [http://pdbe.org/2maf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2maf RCSB], [http://www.ebi.ac.uk/pdbsum/2maf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2maf ProSAT]</span></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=2maf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2maf OCA], [https://pdbe.org/2maf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2maf RCSB], [https://www.ebi.ac.uk/pdbsum/2maf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2maf ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/OPAH_NEIGO OPAH_NEIGO]] Implicated in a number of adherence functions. OPA proteins are implicated in pathogenesis and are subject to phase variation. | + | [https://www.uniprot.org/uniprot/OPAH_NEIGO OPAH_NEIGO] Implicated in a number of adherence functions. OPA proteins are implicated in pathogenesis and are subject to phase variation. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Columbus, L]] | + | [[Category: Large Structures]] |
| - | [[Category: Fox, D A]] | + | [[Category: Neisseria gonorrhoeae]] |
| - | [[Category: Kasson, P M]] | + | [[Category: Columbus L]] |
| - | [[Category: Kroncke, B M]] | + | [[Category: Fox DA]] |
| - | [[Category: Larsson, P]] | + | [[Category: Kasson PM]] |
| - | [[Category: Lo, R H]] | + | [[Category: Kroncke BM]] |
| - | [[Category: Beta-barrel]] | + | [[Category: Larsson P]] |
| - | [[Category: Membrane protein]] | + | [[Category: Lo RH]] |
| Structural highlights
Function
OPAH_NEIGO Implicated in a number of adherence functions. OPA proteins are implicated in pathogenesis and are subject to phase variation.
Publication Abstract from PubMed
The structure and dynamics of Opa proteins, which we report herein, are responsible for the receptor-mediated engulfment of Neisseria gonorrheae or Neisseria meningitidis by human cells and can offer deep understanding into the molecular recognition of pathogen-host receptor interactions. Such interactions are vital to understanding bacterial pathogenesis as well as the mechanism of foreign body entry to a human cell, which may provide insights for the development of targeted pharmaceutical delivery systems. The size and dynamics of the extracellular loops of Opa60 required a hybrid refinement approach wherein membrane and distance restraints were used to generate an initial NMR structural ensemble, which was then further refined using molecular dynamics in a DMPC bilayer. The resulting ensemble revealed that the extracellular loops, which bind host receptors, occupy compact conformations, interact with each other weakly, and are dynamic on the nanosecond time scale. We predict that this conformational sampling is critical for enabling diverse Opa loop sequences to engage a common set of receptors.
Structure of the Neisserial Outer Membrane Protein Opa: Loop Flexibility Essential to Receptor Recognition and Bacterial Engulfment.,Fox DA, Larsson P, Lo RH, Kroncke BM, Kasson PM, Columbus L J Am Chem Soc. 2014 May 19. PMID:24813921[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Fox DA, Larsson P, Lo RH, Kroncke BM, Kasson PM, Columbus L. Structure of the Neisserial Outer Membrane Protein Opa: Loop Flexibility Essential to Receptor Recognition and Bacterial Engulfment. J Am Chem Soc. 2014 May 19. PMID:24813921 doi:http://dx.doi.org/10.1021/ja503093y
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