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GO:0003674
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molecular_function
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A molecular process that can be carried out by the action of a single macromolecular machine, usually via direct physical interactions with other molecular entities. Function in this sense denotes an action, or activity, that a gene product (or a complex) performs. |
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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: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:0008170
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N-methyltransferase activity
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Catalysis of the transfer of a methyl group to the nitrogen atom of an acceptor molecule. |
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GO:0016741
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transferase activity, transferring one-carbon groups
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Catalysis of the transfer of a one-carbon group from one compound (donor) to another (acceptor). |
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GO:0008168
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methyltransferase activity
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Catalysis of the transfer of a methyl group to an acceptor molecule. |
