ISDA: 1HTM

Deposition Date 1994-11-02

Release Date 1995-02-14

Last Version Date 2024-10-30

Entry Detail

PDB ID:

1HTM

Keywords:

VIRAL PROTEIN

Title:

STRUCTURE OF INFLUENZA HAEMAGGLUTININ AT THE PH OF MEMBRANE FUSION

Biological Source:

Source Organism:

uncultured beta proteobacterium UMTRA-608 (Taxon ID: 140147)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.29

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

C 2 2 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HEMAGGLUTININ HA1 CHAIN
Gene (Uniprot):HA
Chain IDs:A, C, E
Chain Length:27
Number of Molecules:3
Biological Source:uncultured beta proteobacterium UMTRA-608

UniProt ID:P03437

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HEMAGGLUTININ HA2 CHAIN
Gene (Uniprot):HA
Chain IDs:B, D, F
Chain Length:138
Number of Molecules:3
Biological Source:uncultured beta proteobacterium UMTRA-608

UniProt ID:P03437

Primary Citation

Structure of influenza haemagglutinin at the pH of membrane fusion.

Bullough, P.A, Hughson, F.M, Skehel, J.J, Wiley, D.C, Bullough, P.A, Hughson, F.M, Treharne, A.C, Ruigrok, R.W.H, Skehel, J.J, Wiley, D.C, Weis, W.I, Brunger, A.T, Skehel, J.J, Wiley, D.C, Ruigrok, R.W.H, Aitken, A, Calder, L.J, Martin, S.R, Skehel, J.J, Wharton, S.A, Weis, W, Wiley, D.C, Daniels, R.S, Douglas, A.R, Skehel, J.J, Skehel, J.J, Bayley, P.M, Brown, E.B, Martin, S.R, Waterfield, M.D, White, J.M, Wilson, I.A, Wiley, D.C, Wilson, I.A, Skehel, J.J, Wiley, D.C.Show

Nature 371 37 43 (1994)

PMID: 8072525 DOI: 10.1038/371037a0

Abstact

Low pH induces a conformational change in the influenza virus haemagglutinin, which then mediates fusion of the viral and host cell membranes. The three-dimensional structure of a fragment of the haemagglutinin in this conformation reveals a major refolding of the secondary and tertiary structure of the molecule. The apolar fusion peptide moves at least 100 A to one tip of the molecule. At the other end a helical segment unfolds, a subdomain relocates reversing the chain direction, and part of the structure becomes disordered.

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Primary Citation of related structures

Abstact

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