1KEN image
Deposition Date 2001-11-16
Release Date 2002-04-24
Last Version Date 2024-10-09
Entry Detail
PDB ID:
1KEN
Keywords:
Viral protein/Immune system
Title:
INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION
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:
3.50 Å
R-Value Free:
0.32
R-Value Work:
0.25
Space Group:
P 21 21 2
1KEN validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:hemagglutinin HA1
Chain IDs:A, C, E
Chain Length:328
Number of Molecules:3
Biological Source:Influenza A virus (A/X-31(H3N2))
UniProt ID:P03438 Pfam ID:PF00509
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:hemagglutinin HA2
Gene (Uniprot):HA
Chain IDs:B, D, F
Chain Length:175
Number of Molecules:3
Biological Source:Influenza A virus (A/X-31(H3N2))
UniProt ID:P03437 Pfam ID:PF00509
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:influenza virus infectivity neutralizing antibody (heavy chain)
Chain IDs:H, J (auth: T)
Chain Length:221
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:P01869 Pfam ID:PF07654
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:influenza virus infectivity neutralizing antibody (light chain)
Chain IDs:G (auth: L), I (auth: U)
Chain Length:213
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:P01837 Pfam ID:PF07654
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
ASN A ASN GLYCOSYLATION SITE
Ligand Molecules
NA
Primary Citation
An Antibody that Prevents the Hemagglutinin Low pH Fusogenic Transition
VIROLOGY 294 70 74 (2002)
PMID: 11886266 DOI: 10.1006/viro.2001.1320

Abstact

We have determined the structure of a complex of influenza hemagglutinin (HA) with an antibody that binds simultaneously to the membrane-distal domains of two HA monomers, effectively cross-linking them. The antibody prevents the low pH structural transition of HA that is required for its membrane fusion activity, providing evidence that a rearrangement of HA membrane-distal domains is an essential component of the transition.

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Protein

Chemical

Disease

Primary Citation of related structures
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