Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1BC Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 74.83 kDa 
• Atom Count: 5537 
• Residue Count: 683 
• Unique protein chains: 3

1OSP

CRYSTAL STRUCTURE OF OUTER SURFACE PROTEIN A OF BORRELIA BURGDORFERI COMPLEXED WITH A MURINE MONOCLONAL ANTIBODY FAB

• DOI: 10.2210/pdb1OSP/pdb

• Classification: COMPLEX (IMMUNOGLOBULIN/LIPOPROTEIN)
• Organism(s): Mus musculus, Borreliella burgdorferi B31
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1996-11-23 Released: 1997-04-21 
• Deposition Author(s): Li, H., Lawson, C.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.295 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 

Literature

Crystal structure of Lyme disease antigen outer surface protein A complexed with an Fab.

Li, H., Dunn, J.J., Luft, B.J., Lawson, C.L.

(1997) Proc Natl Acad Sci U S A 94: 3584-3589

• PubMed: 9108020 
• DOI: 10.1073/pnas.94.8.3584
• Structures With Same Primary Citation


• PubMed Abstract: 
  

OspA (outer surface protein A) is an abundant immunogenic lipoprotein of the Lyme disease spirochete Borrelia burgdorferi. The crystal structure of a soluble recombinant form of OspA was solved in a complex with the Fab fragment of mouse monoclonal antibody 184.1 and refined to a resolution of 1.9 A. OspA has a repetitive antiparallel beta topology with an unusual nonglobular region of "freestanding" sheet connecting globular N- and C-terminal domains. Arrays of residues with alternating charges are a predominant feature of the folding pattern in the nonglobular region. The 184.1 epitope overlaps with a well conserved surface in the N-terminal domain, and a hydrophobic cavity buried in a positively charged cleft in the C-terminal domain is a potential binding site for an unknown ligand. An exposed variable region on the C-terminal domain of OspA is predicted to be an important factor in the worldwide effectiveness of OspA-based vaccines.

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Organizational Affiliation: 

Biology Department, Brookhaven National Laboratory, Upton, NY 11973, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
FAB 184.1	L	214	Mus musculus	Mutation(s): 0  Gene Names: Igkc
Find proteins for P01837 (Mus musculus) Explore P01837  Go to UniProtKB:  P01837

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
FAB 184.1	H	218	Mus musculus	Mutation(s): 0  Gene Names: Igh-3
Find proteins for P01867 (Mus musculus) Explore P01867  Go to UniProtKB:  P01867

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
OUTER SURFACE PROTEIN A	O	257	Borreliella burgdorferi B31	Mutation(s): 4  Gene Names: ospA, BB_A15
Find proteins for P0CL66 (Borrelia burgdorferi (strain ATCC 35210 / B31 / CIP 102532 / DSM 4680)) Explore P0CL66  Go to UniProtKB:  P0CL66

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.295 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.1	α = 90
b = 91.7	β = 90
c = 100.4	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-11-23 
• Released Date: 1997-04-21 
Deposition Author(s): Li, H., Lawson, C.L.

Revision History 

• Version 1.0: 1997-04-21
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance