Tags: Enzyme.
In enzymology a heteroglycan alpha-mannosyltransferase (EC 2.4.1.48) is an enzyme that catalyzes the chemical reactionGDP-mannose + heteroglycan GDP + 2(or 3)-alpha-D-mannosyl-heteroglycanThus the two substrates of this enzyme are GDP-mannose and heteroglycan whereas its 3 products are GDP 2-alpha-D-mannosyl-heteroglycan and 3-alpha-D-mannosyl-heteroglycan.This enzyme belongs to the family of glycosyltransferases to be specific the hexosyltransferases.