UniProt functional annotation for Q04830

UniProt code: Q04830.

Organism: Enterobacteria phage K1F (Bacteriophage K1F).
Taxonomy: Viruses; dsDNA viruses, no RNA stage; Caudovirales; Podoviridae; Autographivirinae; T7likevirus.
Function: Responsible for initial absorption of the phage to the host bacterium. Degradation of the alpha-2,8-linked polysialic acid K1 capsule.
Catalytic activity: Endohydrolysis of (2->8)-alpha-sialosyl linkages in oligo- or poly(sialic) acids.
Subunit: Homotrimer.
Similarity: Belongs to the glycosyl hydrolase 58 family. {ECO:0000305}.
Similarity: Contains 3 BNR repeats. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.