Trichoplusia ni, High Five(baculovirus)-derived human ST8 alpha-2,8-Sialyltransferase 8B/ST8SIA2 protein.
Catalytic Activity
May transfer sialic acid through alpha-2,8-linkages to the alpha-2,3-linked and alpha-2,6-linked sialic acid of N-linked oligosaccharides of glycoproteins and may be involved in PSA (polysialic acid) expression.
Definition of Enzyme Activity
Measured by its ability to transfer sialic acid from CMP-NeuAc to Recombinant Human NCAM‑1/CD56 120 isoform.