WormMine

WS297

Intermine data mining platform for C. elegans and related nematodes

GO Term : GO:0043740 GTP cyclohydrolase IIa activity GO

Namespace  molecular_function Obsolete  false
Description  Catalysis of the reaction: GTP + 3 H2O = 2-amino-5-formylamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one + 2 H+ + 2 phosphate.

0 Cross References

0 Data Sets

1 Ontology

Name
GO

0 Ontology Annotations

8 Parents

Identifier Name Description
GO:0003674 molecular_function 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.
GO:0003824 catalytic activity 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.
GO:0016787 hydrolase activity Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc.
GO:0016814 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines Catalysis of the hydrolysis of any non-peptide carbon-nitrogen bond in a cyclic amidine, a compound of the form R-C(=NH)-NH2.
GO:0016810 hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds Catalysis of the hydrolysis of any carbon-nitrogen bond, C-N, with the exception of peptide bonds.
GO:0019238 cyclohydrolase activity 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.
GO:0003933 GTP cyclohydrolase activity Catalysis of the hydrolysis of the imidazole ring of GTP, releasing formate. Two C-N bonds are hydrolyzed and the pentase unit is isomerized.
GO:0043740 GTP cyclohydrolase IIa activity Catalysis of the reaction: GTP + 3 H2O = 2-amino-5-formylamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one + 2 H+ + 2 phosphate.

7 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
is_a GO:0003933 GO:0043740
is_a GO:0016810 GO:0043740
is_a GO:0003674 GO:0043740
is_a GO:0016787 GO:0043740
is_a GO:0016814 GO:0043740
is_a GO:0003824 GO:0043740
is_a GO:0019238 GO:0043740

3 Synonyms

Name Type
GTP 8,9-dihydrolase (phosphate-forming) synonym
GTP 8,9-hydrolase (phosphate-forming) synonym
GTP cyclohydrolase III activity synonym