2VIU image
Deposition Date 1997-12-22
Release Date 1998-04-29
Last Version Date 2024-11-13
Entry Detail
PDB ID:
2VIU
Keywords:
HEMAGGLUTININ
Title:
INFLUENZA VIRUS HEMAGGLUTININ
Biological Source:
Source Organism:
Influenza A virus (A/X-31(H3N2)) (Taxon ID: 132504)
unidentified influenza virus (Taxon ID: 11309)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.50 Å
R-Value Free:
0.24
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 21 3
2VIU validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HEMAGGLUTININ
Gene (Uniprot):HA
Mutations:CHAIN A, T131I
Chain IDs:A
Chain Length:328
Number of Molecules:1
Biological Source:Influenza A virus (A/X-31(H3N2))
UniProt ID:P03437 Pfam ID:PF00509
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HEMAGGLUTININ
Gene (Uniprot):HA
Mutations:CHAIN A, T131I
Chain IDs:B
Chain Length:175
Number of Molecules:1
Biological Source:unidentified influenza virus
UniProt ID:P03437 Pfam ID:PF00509
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
ASN A ASN GLYCOSYLATION SITE
Ligand Molecules
NAG
Primary Citation
Antigen distortion allows influenza virus to escape neutralization.
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.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
2VIU