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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:0016787
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hydrolase activity
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Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3. |
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GO:0008152
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metabolic process
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The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation. |
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GO:0016810
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hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
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Catalysis of the hydrolysis of any carbon-nitrogen bond, C-N, with the exception of peptide bonds. |
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GO:0016814
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hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines
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Catalysis of the hydrolysis of any non-peptide carbon-nitrogen bond in a cyclic amidine, a compound of the form R-C(=NH)-NH2. |
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GO:0008150
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biological_process
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Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end. |
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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:0019238
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cyclohydrolase activity
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Catalysis of the hydrolysis of any non-peptide carbon-nitrogen bond in a cyclic amidine, a compound of the form R-C(=NH)-NH2, in a reaction that involves the opening of a ring. |
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GO:0003933
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GTP cyclohydrolase activity
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Catalysis of the hydrolysis of the imidazole ring of GTP, releasing formate. Two C-N bonds are hydrolyzed and the pentase unit is isomerized. |
