ISDA

Deposition Date 1997-12-22

Release Date 1998-04-29

Last Version Date 2024-11-20

Entry Detail

PDB ID:

2VIT

Keywords:

COMPLEX (HEMAGGLUTININ/IMMUNOGLOBULIN)

Title:

INFLUENZA VIRUS HEMAGGLUTININ, MUTANT WITH THR 155 REPLACED BY ILE, COMPLEXED WITH A NEUTRALIZING ANTIBODY

Biological Source:

Source Organism:

Influenza A virus (A/X-31(H3N2)) (Taxon ID: 132504)
Mus musculus (Taxon ID: 10090)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.25 Å

R-Value Free:

0.23

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 61 2 2

Download Validation Report

Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:IMMUNOGLOBULIN (IGG1, LAMBDA)
Chain IDs:A
Chain Length:210
Number of Molecules:1
Biological Source:Mus musculus

Protein Blast

Polymer Type:polypeptide(L)
Molecule:IMMUNOGLOBULIN (IGG1, LAMBDA)
Chain IDs:B
Chain Length:221
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:Q99LC4 Pfam ID:PF07686, PF07654

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HEMAGGLUTININ
Gene (Uniprot):HA
Mutations:T155I
Chain IDs:C
Chain Length:282
Number of Molecules:1
Biological Source:Influenza A virus (A/X-31(H3N2))

UniProt ID:P03437 Pfam ID:PF00509

Ligand Molecules

Primary Citation

Antigen distortion allows influenza virus to escape neutralization.

Fleury, D, Wharton, S.A, Skehel, J.J, Knossow, M, Bizebard, T, Bizebard, T, Gigant, B, Rigolet, P, Rasmussen, B, Diat, O, Bosecke, P, Wharton, S.A, Skehel, J.J, Knossow, M, Bizebard, T, Daniels, R, Kahn, R, Golinelli-Pimpaneau, B, Skehel, J.J, Knossow, M, Wilson, I.A, Skehel, J.J, Wiley, D.C.Show

Nat.Struct.Biol. 5 119 123 (1998)

PMID: 9461077 DOI: 10.1038/nsb0298-119

Abstact

The structure of the hemagglutinin (HA) of a mutant influenza virus that escapes neutralization by a monoclonal antibody shows that the mutation causes changes in HA structure which avoid an energetically less favorable conformation. However, the structure of the mutant HA.Fab complex indicates that the antibody binds selectively to mutant HA in a wild type-like distorted conformation. The association of an antibody with a less favored HA conformation represents an alternative to previously described mechanisms of escape from neutralization by antibodies.

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Protein

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Disease

Primary Citation of related structures