| GO term | GO name | GO namespace | GO def |
| GO:0016758 | hexosyltransferase activity | molecular_function | Catalysis of the transfer of a hexosyl group from one compound (donor) to another (acceptor). [GOC:jl] |
| GO:0097502 | mannosylation | biological_process | The covalent attachment of a mannose residue to a substrate molecule. [GOC:cjm] |
| GO:0000030 | mannosyltransferase activity | molecular_function | Catalysis of the transfer of a mannosyl group to an acceptor molecule, typically another carbohydrate or a lipid. [GOC:ai, GOC:cjm] |
| GO:0006506 | GPI anchor biosynthetic process | biological_process | The chemical reactions and pathways resulting in the formation of a glycosylphosphatidylinositol (GPI) anchor that attaches some membrane proteins to the lipid bilayer of the cell membrane. The phosphatidylinositol group is linked via the C-6 hydroxyl residue of inositol to a carbohydrate chain which is itself linked to the protein via an ethanolamine phosphate group, its amino group forming an amide linkage with the C-terminal carboxyl of the protein. Some GPI anchors have variants on this canonical linkage. [GOC:go_curators, ISBN:0198547684] |
| GO:0016021 | integral component of membrane | cellular_component | The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane. [GOC:dos, GOC:go_curators] |
| GO:1902494 | catalytic complex | cellular_component | A protein complex which is capable of catalytic activity. [GOC:bhm, GOC:TermGenie, PMID:8077207] |
| GO:1990234 | transferase complex | cellular_component | A protein complex capable of catalyzing 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). [GOC:bhm, PMID:16540464] |
| GO:0032991 | protein-containing complex | cellular_component | A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together. [GOC:dos, GOC:mah] |
| GO:0003824 | catalytic activity | molecular_function | 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. [GOC:vw, ISBN:0198506732] |
| GO:0016740 | transferase activity | molecular_function | 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. [ISBN:0198506732] |
| GO:0016757 | glycosyltransferase activity | molecular_function | Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor). [GOC:jl, ISBN:0198506732] |
| GO:0005789 | endoplasmic reticulum membrane | cellular_component | The lipid bilayer surrounding the endoplasmic reticulum. [GOC:mah] |