Sialidases localized on the cell membrane and DNA encoding these sialidases.

摘要

A protein defined in the following (A) or (B): A) a protein having the amino acid sequence of the ID. SEC. No.2 or ID. SEC. No. 4, or B) a protein having the amino acid sequence including substitution, deletion, insertion or transition of 1 to 80 amino acid residues in SEQ ID. SEC. No. 2 or in SEQ ID. SEC. No. 4, and showing activity to remove a sialic acid residue of a non-reducing terminal of ganglioside.