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Category:GO:0004378 ! GDP-Man:Man1GlcNAc2-PP-Dol alpha-1,3-mannosyltransferase activity
name: GDP-Man:Man1GlcNAc2-PP-Dol alpha-1,3-mannosyltransferase activity
namespace: molecular_function
def: "Catalysis of the reaction: beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-D-GlcNAc-diphosphodolichol + GDP-alpha-D-mannose = alpha-D-Man-(1->3)-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-D-GlcNAc-diphosphodolichol + GDP + H+. This reaction is the transfer of an alpha-D-mannosyl residue from GDP-mannose into lipid-linked oligosaccharide, forming an alpha-(1->3)-D-mannosyl-D-mannose linkage." [EC:2.4.1.132]
synonym: "GDP-D-mannose:D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol 3-alpha-mannosyltransferase activity" EXACT systematic_synonym [EC:2.4.1.132]
synonym: "GDP-mannose-oligosaccharide-lipid mannosyltransferase II" RELATED [EC:2.4.1.132]
synonym: "GDP-mannose:glycolipid 1,3-alpha-D-mannosyltransferase activity" RELATED [EC:2.4.1.132]
synonym: "glycolipid 3-alpha-mannosyltransferase activity" RELATED [EC:2.4.1.132]
synonym: "guanosine diphosphomannose-oligosaccharide-lipid II mannosyltransferase activity" RELATED [EC:2.4.1.132]
synonym: "mannosyltransferase II activity" RELATED [EC:2.4.1.132]
xref: EC:2.4.1.132
xref: MetaCyc:RXN-5462
xref: RHEA:29515
is_a: GO:0000033 ! alpha-1,3-mannosyltransferase activity
is_a: GO:0004376 ! glycolipid mannosyltransferase activity
AmiGO
<GOterm>GO:0004378</GOterm>
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