Lactose Synthase

Synonyms

Lactose Synthetase

N Acetylgucosamide 1 4 beta Galactosyl Transferase

N-Acetylgucosamide 1-4 beta Galactosyl Transferase

Synthase, Lactose

Synthetase, Lactose

UDPgalactose:D-glucose 4-beta-D-galactosyltransferase

An enzyme complex that catalyzes the transfer of GALACTOSE from UDP GALACTOSE to GLUCOSE, forming LACTOSE. The enzyme complex is composed of a B subunit, ALPHA-LACTALBUMIN, which changes the substrate specificity of the A subunit, N-ACETYLLACTOSAMINE SYNTHASE, from N-ACETYLGLUCOSAMINE to glucose making lactose synthesis the preferred reaction.