NOVEL BETA-GALACTOSIDE-a2,6-SIALYLTRANSFERASE, A GENE ENCODING THEREOF, AND A METHOD FOR ENHANCING ENZYME ACTIVITY

摘要

The present invention provides an extremely useful and novel &bgr;-galactoside-α2,6-sialyltransferase having an optimum reaction pH in a neutral to alkaline range, and a nucleic acid encoding the sialyltransferase. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant &bgr;-galactoside-α2,6-sialyltransferase.