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ENZYME

ENZYME entry: EC 2.8.1.2

Accepted Name
3-mercaptopyruvate sulfurtransferase
Reaction catalysed
2-oxo-3-sulfanylpropanoate + [thioredoxin]-dithiol <=> [thioredoxin]-disulfide + H(+) + hydrogen sulfide + pyruvate
Comment(s)
  • The enzyme catalyzes a transsulfuration reaction from 3-mercaptopyruvate to an internal cysteine residue.
  • In the presence of a dithiol such as reduced thioredoxin or dihydrolipoate, the sulfanyl sulfur is released as hydrogen sulfide.
  • The enzyme participates in a sulfur relay process that leads to the 2-thiolation of some tRNAs and to protein urmylation by transferring sulfur between the NFS1 cysteine desulfurase (EC 2.8.1.7) and the MOCS3 sulfurtransferase (EC 2.8.1.11).
Cross-references
BRENDA2.8.1.2
EC2PDB2.8.1.2
ExplorEnz2.8.1.2
PRIAM enzyme-specific profiles2.8.1.2
KEGG Ligand Database for Enzyme Nomenclature2.8.1.2
IUBMB Enzyme Nomenclature2.8.1.2
IntEnz2.8.1.2
MEDLINEFind literature relating to 2.8.1.2
MetaCyc2.8.1.2
Rhea expert-curated reactions2.8.1.2
UniProtKB/Swiss-Prot
O64530, STR1_ARATHQ24JL3, STR2_ARATHP58388, THTM_ECO57
P31142, THTM_ECOLIP25325, THTM_HUMANQ99J99, THTM_MOUSE
Q9I452, THTM_PSEAEP97532, THTM_RATQ9USJ1, THTM_SCHPO

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