1FPT

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


Experimental Data Snapshot

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

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


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

  • 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 hea ...

    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.


    Organizational Affiliation

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



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FAB FRAGMENT OF AN NEUTRALIZING ANTIBODY FOR TYPE 1 POLIOVIRUSP18Human poliovirus 1 MahoneyMutation(s): 0 
EC: 3.4.22.29 (UniProt), 3.6.1.15 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for P03300 (Poliovirus type 1 (strain Mahoney))
Explore P03300 
Go to UniProtKB:  P03300
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
IGG2A-KAPPA C3 FAB (LIGHT CHAIN)L219Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
IGG2A-KAPPA C3 FAB (HEAVY CHAIN)H220Mus musculusMutation(s): 0 
Gene Names: Igh-1a
Find proteins for P01865 (Mus musculus)
Explore P01865 
Go to UniProtKB:  P01865
Protein Feature View
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  • Reference Sequence
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 = 129.785α = 90
b = 129.785β = 90
c = 143.829γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

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