Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 49.50 kDa 
• Atom Count: 3465 
• Modelled Residue Count: 450 
• Deposited Residue Count: 457 
• Unique protein chains: 3

1FPT

THREE-DIMENSIONAL STRUCTURE OF THE COMPLEX BETWEEN THE FAB FRAGMENT OF AN NEUTRALIZING ANTIBODY FOR TYPE 1 POLIOVIRUS AND ITS VIRAL EPITOPE

• DOI: 10.2210/pdb1FPT/pdb

• Classification: COMPLEX (ANTIBODY/PV-1 FRAGMENT)
• Organism(s): Human poliovirus 1 Mahoney, Mus musculus
• Mutation(s): No 


• Deposited: 1995-01-26 Released: 1995-03-31 
• Deposition Author(s): Wien, M.W., Hogle, J.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Work: 0.230 
• R-Value Observed: 0.230 

Literature

Structure of the complex between the Fab fragment of a neutralizing antibody for type 1 poliovirus and its viral epitope.

Wien, M.W., Filman, D.J., Stura, E.A., Guillot, S., Delpeyroux, F., Crainic, R., Hogle, J.M.

(1995) Nat Struct Biol 2: 232-243

• PubMed: 7539711 
• DOI: 10.1038/nsb0395-232
• Primary Citation of Related Structures:  
  1FPT


• PubMed Abstract: 
  

The crystal structure of the complex between the Fab fragment of C3, a neutralizing antibody for poliovirus, and a peptide corresponding to the viral epitope has been determined at 3.0 A resolution. Although this antibody was originally raised to heat inactivated (noninfectious) virus particles, it strongly neutralizes the Mahoney strain of type 1 poliovirus. Eleven peptide residues are well-defined in the electron-density map and form two type I beta-turns in series. At the carboxyl end, the peptide is bound snugly in the antibody-combining site and adopts a conformation that differs significantly from the structure of the corresponding residues in the virus. Structural comparisons between the peptide in the complex and the viral epitope suggests that on binding to infectious virions, this antibody may induce structural changes important for neutralization.

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Organizational Affiliation: 

Committee for Higher Degrees in Biophysics, Harvard University, Cambridge, Massachusetts 02138, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FAB FRAGMENT OF AN NEUTRALIZING ANTIBODY FOR TYPE 1 POLIOVIRUS	A [auth P]	18	Human poliovirus 1 Mahoney	Mutation(s): 0  EC: 3.4.22.29 (UniProt), 3.6.1.15 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for P03300 (Poliovirus type 1 (strain Mahoney)) Explore P03300  Go to UniProtKB:  P03300

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
IGG2A-KAPPA C3 FAB (LIGHT CHAIN)	B [auth L]	219	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
IGG2A-KAPPA C3 FAB (HEAVY CHAIN)	C [auth H]	220	Mus musculus	Mutation(s): 0  Gene Names: Igh-1a
UniProt
Find proteins for P01865 (Mus musculus) Explore P01865  Go to UniProtKB:  P01865

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Work: 0.230 
• R-Value Observed: 0.230 
• Space Group: P 6₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 129.785	α = 90
b = 129.785	β = 90
c = 143.829	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-01-26 
• Released Date: 1995-03-31 
Deposition Author(s): Wien, M.W., Hogle, J.M.

Revision History  

• Version 1.0: 1995-03-31
  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