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GO:0003824
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catalytic activity
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Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic. |
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GO:0016757
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transferase activity, transferring glycosyl groups
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Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor). |
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GO:0016758
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transferase activity, transferring hexosyl groups
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Catalysis of the transfer of a hexosyl group from one compound (donor) to another (acceptor). |
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GO:0016740
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transferase activity
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Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2. |
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GO:0003674
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molecular_function
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Elemental activities, such as catalysis or binding, describing the actions of a gene product at the molecular level. A given gene product may exhibit one or more molecular functions. |
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GO:0000030
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mannosyltransferase activity
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Catalysis of the transfer of a mannosyl group to an acceptor molecule, typically another carbohydrate or a lipid. |
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GO:0000026
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alpha-1,2-mannosyltransferase activity
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Catalysis of the transfer of a mannose residue to an oligosaccharide, forming an alpha-(1->2) linkage. |
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GO:0004376
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glycolipid mannosyltransferase activity
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Catalysis of the transfer of an alpha-D-mannosyl residue from GDP-mannose into lipid-linked oligosaccharide, forming an alpha-D-mannosyl-D-mannose linkage. |
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GO:0004377
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GDP-Man:Man3GlcNAc2-PP-Dol alpha-1,2-mannosyltransferase activity
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Catalysis of the reaction: an alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-D-GlcNAc-diphosphodolichol + 2 GDP-alpha-D-mannose = an alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-D-GlcNAc-diphosphodolichol + 2 GDP + 2 H+. This reaction is the transfer of an alpha-D-mannosyl residue from GDP-mannose into lipid-linked oligosaccharide, forming an alpha-(1->2)-D-mannosyl-D-mannose linkage. |
