UniProt functional annotation for Q9Q2W5

UniProt code: Q9Q2W5.

Organism: Newcastle disease virus (strain Kansas) (NDV).
Taxonomy: Viruses; ssRNA negative-strand viruses; Mononegavirales; Paramyxoviridae; Paramyxovirinae; Avulavirus.
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). {ECO:0000250}.
Function: Neuraminidase activity ensures the efficient spread of the virus by dissociating the mature virions from the neuraminic acid containing glycoproteins. {ECO:0000250}.
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 {ECO:0000305}; Single-pass type II membrane protein {ECO:0000305}. Host cell membrane {ECO:0000305}; Single-pass type II membrane protein {ECO:0000305}.
Similarity: Belongs to the paramyxoviruses hemagglutinin- neuraminidase family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.