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UniProtKB/Swiss-Prot entry P21526


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name HN_PI4HA
Primary accession number P21526
Secondary accession numbers None
Integrated into Swiss-Prot on May 1, 1991
Sequence was last modified on May 1, 1991 (Sequence version 1)
Annotations were last modified on    November 25, 2008 (Entry version 56)
Name and origin of the protein
Protein name Hemagglutinin-neuraminidase
Synonym EC 3.2.1.18
Gene name
Name: HN
From
Human parainfluenza 4a virus (strain Toshiba) (HPIV-4a) [TaxID: 11225] 
Taxonomy Viruses; ssRNA negative-strand viruses; Mononegavirales; Paramyxoviridae; Paramyxovirinae; Rubulavirus.
Virus host Homo sapiens (Human) [TaxID: 9606]
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC RNA].
DOI=10.1016/0042-6822(90)90213-B; PubMed=2155512 [NCBI, ExPASy, EBI, Israel, Japan]
Bando H., Kondo K., Kawano M., Komada H., Tsurudome M., Nishio M., Ito Y.;
"Molecular cloning and sequence analysis of human parainfluenza type 4A virus HN gene: its irregularities on structure and activities.";
Virology 175:307-312(1990).
Comments
  • FUNCTION: Attaches the virus to sialic acid-containing cell receptors and thereby initiating infection. Binding of HN protein to the receptor induces a conformational change that allows the F protein to trigger virion/cell membranes fusion (By similarity).
  • FUNCTION: Neuraminidase activity ensures the efficient spread of the virus by dissociating the mature virions from the neuraminic acid containing glycoproteins (By similarity).
  • CATALYTIC ACTIVITY: Hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)- glycosidic linkages of terminal sialic acid residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates.
  • SUBCELLULAR LOCATION: Virion membrane; Single-pass type II membrane protein (Potential). Cell membrane; Single-pass type II membrane protein (Potential).
  • SIMILARITY: Belongs to the paramyxoviruses hemagglutinin-neuraminidase family.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
M34033; AAA46799.1; -; Genomic_RNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR A34683; HNNZ4A.
3D structure databases
ModBase P21526.
Ontologies
GO
GO:0016021; Cellular component: integral to membrane (inferred from electronic annotation from UniProtKB-KW).
GO:0005886; Cellular component: plasma membrane (inferred from electronic annotation from UniProtKB-KW).
GO:0019031; Cellular component: viral envelope (inferred from electronic annotation from InterPro).
GO:0055036; Cellular component: virion membrane (inferred from electronic annotation from UniProtKB-SubCell).
GO:0004308; Molecular function: exo-alpha-sialidase activity (inferred from electronic annotation from InterPro).
GO:0046789; Molecular function: host cell surface receptor binding (inferred from electronic annotation from InterPro).
GO:0019058; Biological process: viral infectious cycle (inferred from electronic annotation from InterPro).
QuickGo view.
Family and domain databases
InterPro IPR000665; Hemagglutn-neuramid_glycoprot.
IPR016285; Hemagglutn-neuramid_paramyxo.
Graphical view of domain structure.
Pfam PF00423; HN; 1.
Pfam graphical view of domain structure.
PIRSF PIRSF001072; Hemagglut-neuramid_paramyxoV; 1.
ProtoNet P21526.
Other
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Cell membrane; Envelope protein; Glycoprotein; Hemagglutinin; Hydrolase; Membrane; Signal-anchor; Transmembrane; Virion.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   573  573     Hemagglutinin-neuraminidase. PRO_0000142632
TOPO_DOM   1    27  27     Cytoplasmic (Potential). 
TRANSMEM   28    48  21     Potential. 
TOPO_DOM   49   573  525     Extracellular (Potential). 
CARBOHYD   258   258        N-linked (GlcNAc...) (Potential). 
CARBOHYD   330   330        N-linked (GlcNAc...) (Potential). 
CARBOHYD   339   339        N-linked (GlcNAc...) (Potential). 
CARBOHYD   347   347        N-linked (GlcNAc...) (Potential). 
CARBOHYD   433   433        N-linked (GlcNAc...) (Potential). 
CARBOHYD   502   502        N-linked (GlcNAc...) (Potential). 
CARBOHYD   530   530        N-linked (GlcNAc...) (Potential). 
Sequence information
Length: 573 AA [This is the length of the unprocessed precursor] Molecular weight: 65544 Da [This is the MW of the unprocessed precursor] CRC64: 3540F24F17931AC4 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MQDSHGNTQI LNQANSMVKR TWRLLFRIAT LILLVSIFVL SLIIVLQSTP GNLQNDINII 

        70         80         90        100        110        120 
RKELNELMEN FETTSKSLLS VSNQITYDVS VLTPIRQEAI ETNIISKIKD HCKDRVIKEG 

       130        140        150        160        170        180 
STCTLNRSPL HDVSFLNGFN KFYFTYKDNM QIKFKSLLDY PNFIPTATTP HGCIRIPSFS 

       190        200        210        220        230        240 
LGQTHWCYTH NINLLGCADP ASSNQYVSLG TLQVLKMGDP YFKVEHSHYL NDGRNRKSCS 

       250        260        270        280        290        300 
VVAVPDGCLR NCVTMTKNET ENFKDLNWQH NYLHTYHIMV PLKTRIINPP GSSRDWVHIA 

       310        320        330        340        350        360 
PGVGSGLLYA KLLIFPLYGG LTEKSVIHNN QSGKYFFPNS TKLQCRNSTM EKIKGAKDSY 

       370        380        390        400        410        420 
TITYFSGRLI QSAFLVCDLR QFLSEDCEIL IPSNDYMMVG AEGRLYNIEN NIFYYQRGSS 

       430        440        450        460        470        480 
WWPYPSLYRI RLNLSKKYPR ITEIKFTKIE IAPRPGNKDC PGNKACPKEC ITGVYQDILP 

       490        500        510        520        530        540 
LSYPNTAFPH LKQAYYTGFY LNNSLERRNP TFYTADNLDY HQQERLGKFN LTAGYSTTTC 

       550        560        570 
FKQTTTARLY CLYIIEVGDS VIGDFQITLF LAA 

P21526 in FASTA format

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