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2mpa

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Revision as of 09:18, 11 September 2015

BACTERICIDAL ANTIBODY AGAINST NEISSERIA MENINGITIDIS

Structural highlights

2mpa is a 3 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
NonStd Res:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Class 1 outer membrane protein PorA of Neisseria meningitidis is a vaccine candidate against bacterial meningitis. Antibodies against PorA are able to induce complement-mediated bacterial killing and thereby play an important role in protection against meningococcal disease. Bactericidal antibodies are all directed against variable regions VR1 and VR2 of the PorA sequence, corresponding to loops 1 and 4 of a two-dimensional topology model of the porin with eight extracellular loops. We have determined the crystal structure to 2.6 A resolution of the Fab fragment of bactericidal antibody MN12H2 against meningococcal PorA in complex with a linear fluorescein-conjugated peptide TKDTNNNL derived from the VR2 sequence of sero-subtype P1.7,16 (residues 180-187) from meningococcal strain H44/76. The peptide folds deeply into the binding cavity of the Fab molecule in a type I beta-turn, with the minimal P1.16 epitope DTNNN virtually completely buried. The structure reveals H-bonds and van der Waals interactions with all minimal epitope residues and one essential salt bridge between Asp-182 of the peptide and His-31 of the MN12H2 light chain. The key components of the recognition of PorA epitope P1.16 by bactericidal antibody MN12H2 correspond well with available thermodynamic data from binding studies. Furthermore, they indicate the structural basis of an increased endemic incidence of infection by group B meningococci in England and Wales since 1981 associated with the occurrence of an Neisseria meningitidis escape mutant (strain-MC58). The observed three-dimensional conformation of the peptide provides a rationale for the development of a synthetic peptide vaccine against meningococcal disease.

Bactericidal antibody recognition of a PorA epitope of Neisseria meningitidis: crystal structure of a Fab fragment in complex with a fluorescein-conjugated peptide.,van den Elsen JM, Herron JN, Hoogerhout P, Poolman JT, Boel E, Logtenberg T, Wilting J, Crommelin DJ, Kroon J, Gros P Proteins. 1997 Sep;29(1):113-25. PMID:9294871^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ van den Elsen JM, Herron JN, Hoogerhout P, Poolman JT, Boel E, Logtenberg T, Wilting J, Crommelin DJ, Kroon J, Gros P. Bactericidal antibody recognition of a PorA epitope of Neisseria meningitidis: crystal structure of a Fab fragment in complex with a fluorescein-conjugated peptide. Proteins. 1997 Sep;29(1):113-25. PMID:9294871

1 Structural highlights
2 Evolutionary Conservation
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2mpa"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CYF:5-[2-(2-AMINO-2-CARBAMOYL-ETHYLSULFANYL)-ACETYLAMINO]-2-(3,6-DIHYDROXY-9,9A-DIHYDRO-3H-XANTHEN-9-YL)-BENZOIC+ACID'>CYF</scene>, <scene name='pdbligand=THC:N-METHYLCARBONYLTHREONINE'>THC</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=2mpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2mpa OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2mpa RCSB], [http://www.ebi.ac.uk/pdbsum/2mpa PDBsum]</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=2mpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2mpa OCA], [http://pdbe.org/2mpa PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2mpa RCSB], [http://www.ebi.ac.uk/pdbsum/2mpa PDBsum]</span></td></tr>
 </table>
 == Evolutionary Conservation ==
@@ Line 25: / Line 25: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2mpa" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

2mpa

From Proteopedia

Revision as of 09:18, 11 September 2015

BACTERICIDAL ANTIBODY AGAINST NEISSERIA MENINGITIDIS

Structural highlights

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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