This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1p4p
From Proteopedia
| Line 7: | Line 7: | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= OSPB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=139 Borrelia burgdorferi]) | |GENE= OSPB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=139 Borrelia burgdorferi]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1osp|1OSP]], [[1fj1|1FJ1]], [[1ggq|1GGQ]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1p4p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p4p OCA], [http://www.ebi.ac.uk/pdbsum/1p4p PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1p4p RCSB]</span> | ||
}} | }} | ||
| Line 31: | Line 34: | ||
[[Category: intermolecular beta sheet]] | [[Category: intermolecular beta sheet]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:54:45 2008'' |
Revision as of 19:54, 30 March 2008
| |||||||
| , resolution 2.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Gene: | OSPB (Borrelia burgdorferi) | ||||||
| Related: | 1OSP, 1FJ1, 1GGQ
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Outer Surface Protein B of B. burgdorferi: crystal structure of the C-terminal fragment
Overview
Certain antibody Fab fragments directed against the C terminus of outer surface protein B (OspB), a major lipoprotein of the Lyme disease spirochete, Borrelia burgdorferi, have the unusual property of being bactericidal even in the absence of complement. We report here x-ray crystal structures of a C-terminal fragment of B. burgdorferi OspB, which spans residues 152-296, alone at 2.0-A resolution, and in a complex with the bactericidal Fab H6831 at 2.6-A resolution. The H6831 epitope is topologically analogous to the LA-2 epitope of OspA and is centered around OspB Lys-253, a residue essential for H6831 recognition. A beta-sheet present in the free OspB fragment is either disordered or removed by proteolysis in the H6831-bound complex. Other conformational changes between free and H6831-bound structures are minor and appear to be related to this loss. In both crystal structures, OspB C-terminal fragments form artificial dimers connected by intermolecular beta-sheets. OspB structure, stability, and possible mechanisms of killing by H6831 and other bactericidal Fabs are discussed in light of the structural data.
About this Structure
1P4P is a Single protein structure of sequence from Borrelia burgdorferi. Full crystallographic information is available from OCA.
Reference
Structural investigation of Borrelia burgdorferi OspB, a bactericidal Fab target., Becker M, Bunikis J, Lade BD, Dunn JJ, Barbour AG, Lawson CL, J Biol Chem. 2005 Apr 29;280(17):17363-70. Epub 2005 Feb 15. PMID:15713683
Page seeded by OCA on Sun Mar 30 22:54:45 2008
