GO Term : GO:0004124 cysteine synthase activity GO

Namespace  molecular_function Obsolete  false
description  Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.

0 Cross References

1 Ontology

Name
GO

5 Parents

Identifier Name Description
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:0004124 cysteine synthase activity Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
GO:0016829 lyase activity Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
GO:0003674 molecular_function 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.
GO:0016835 carbon-oxygen lyase activity Catalysis of the breakage of a carbon-oxygen bond.

9 Protein

Protein Identifier
Organism . Name
Score Score Type Protein Description Alias (in v1) Code Enzyme Gene Prediction Quality
Qrob_P0016590.2 Quercus robur 100.0 egn (M=1) 2.5.1.51 - Beta-pyrazolylalanine synthase.   EC:2.5.1.52, EC:2.5.1.51, EC:4.2.1.50, EC:2.5.1.47 validated
Qrob_P0016610.2 Quercus robur 100.0 egn (M=10) K01738 - cysteine synthase A [EC:2.5.1.47]   EC:2.5.1.47 validated
Qrob_P0016620.2 Quercus robur 100.0 egn (M=10) K01738 - cysteine synthase A [EC:2.5.1.47]   EC:2.5.1.47 validated
Qrob_P0016690.2 Quercus robur 16.2 egn (M=10) K01738 - cysteine synthase A [EC:2.5.1.47]   EC:2.5.1.47 validated
Qrob_P0387350.2 Quercus robur 0.0 egn (M=2) K13034 - L-3-cyanoalanine synthase/ cysteine synthase [EC:2.5.1.47 4.4.1.9]   EC:2.5.1.47 validated
Qrob_P0468950.2 Quercus robur 31.1 egn (M=3) PTHR10314:SF80 - BIFUNCTIONAL L-3-CYANOALANINE SYNTHASE/CYSTEINE SYNTHASE C1, MITOCHONDRIAL (PTHR10314:SF80)   EC:2.5.1.47 validated
Qrob_P0504250.2 Quercus robur 96.0 egn (M=2) K13034 - L-3-cyanoalanine synthase/ cysteine synthase [EC:2.5.1.47 4.4.1.9]   EC:2.5.1.47 validated
Qrob_P0682330.2 Quercus robur 100.0 egn (M=3) KOG1250//KOG1252//KOG1481 - Threonine/serine dehydratases [Amino acid transport and metabolism]. // Cystathionine beta-synthase and related enzymes [Amino acid transport and metabolism]. // Cysteine synthase [Amino acid transport and metabolism].   EC:2.5.1.47 validated
Qrob_P0742630.2 Quercus robur 91.1 egn (M=10) K01738 - cysteine synthase A [EC:2.5.1.47]   EC:2.5.1.47 validated

4 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
is_a GO:0016835 GO:0004124
is_a GO:0016829 GO:0004124
is_a GO:0003824 GO:0004124
is_a GO:0003674 GO:0004124

12 Synonyms

Name Type
O-acetylserine (thiol)-lyase activity synonym
O-acetylserine sulfhydrylase activity synonym
O-acetyl-L-serine sulfohydrolase activity synonym
O-acetylserine (thiol)-lyase A activity synonym
O(3)-acetyl-L-serine acetate-lyase (adding hydrogen-sulfide) activity synonym
O-acetyl-L-serine sulfhydrylase activity synonym
acetylserine sulfhydrylase activity synonym
cysteine synthetase activity synonym
3-O-acetyl-L-serine:hydrogen-sulfide 2-amino-2-carboxyethyltransferase activity synonym
OAS sulfhydrylase activity synonym
O3-acetyl-L-serine acetate-lyase (adding hydrogen-sulfide) synonym
O3-acetyl-L-serine:hydrogen-sulfide 2-amino-2-carboxyethyltransferase activity synonym