IUBMB Enzyme Nomenclature


Accepted name: heteroglycan α-mannosyltransferase

Reaction: GDP-mannose + heteroglycan = GDP + 2(or 3)-α-D-mannosyl-heteroglycan

Other name(s): GDP mannose α-mannosyltransferase; guanosine diphosphomannose-heteroglycan α-mannosyltransferase

Systematic name: GDP-mannose:heteroglycan 2-(or 3-)-α-D-mannosyltransferase

Comments: The acceptor is a heteroglycan primer containing mannose, galactose and xylose. 1,2- and 1,3-mannosyl bonds are formed.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37277-57-9


1. Ankel, H., Ankel, E., Schutzbach, J. and Garancis, J.C. Mannosyl transfer in Cryptococcus laurentii. J. Biol. Chem. 245 (1970) 3945-3955. [PMID: 5492958]

[EC created 1972]

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