1z4z Summary

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Parainfluenza Virus 5 (SV5) Hemagglutinin-Neuraminidase (HN) with ligand DANA(soaked with sialic acid, pH7.0))

The structure was published by Yuan, P., Thompson, T.B., Wurzburg, B.A., Paterson, R.G., Lamb, R.A., and Jardetzky, T.S., in 2005 in a paper entitled "Structural studies of the parainfluenza virus 5 hemagglutinin-neuraminidase tetramer in complex with its receptor, sialyllactose." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.5 Å and deposited in 2005.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of Hemagglutinin-neuraminidase. This molecule has the UniProt identifier P04850 (HN_SV5)search. The sample contained 532 residues which is 94% of the natural sequence. Out of 532 residues 448 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule has more than one probable quaternary state observed. For more details see the quaternary structure page.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Hemagglutinin-neuraminidase P04850 (37-565) (HN_SV5)search Simian virus 5 (strain W3)search 90% 532 84%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P04850 (37 - 565) Hemagglutinin-neuraminidase Parainfluenza virus 5

Chain Sequence family (Pfam)
A (P04850) PF00423: Haemagglutinin-neuraminidasesearch

Chain ID Molecular function (GO) Cellular component (GO) Biological process (GO)
A (P04850) exo-alpha-sialidase activitysearch host cell surface receptor bindingsearch hydrolase activitysearch exo-alpha-(2->6)-sialidase activitysearch exo-alpha-(2->8)-sialidase activitysearch exo-alpha-(2->3)-sialidase activitysearch membranesearch host cell plasma membranesearch viral envelopesearch host cell membranesearch integral component of membranesearch virionsearch virion membranesearch viral processsearch viral life cyclesearch metabolic processsearch virion attachment to host cellsearch viral entry into host cellsearch

Chain InterPro annotation
A Haemagglutinin-neuraminidasesearch Sialidasessearch Haemagglutinin-neuraminidase, paramyxovirussearch