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Information on EC 2.8.1.11 - molybdopterin synthase sulfurtransferase

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IUBMB Comments
The enzyme transfers sulfur to form a thiocarboxylate moiety on the C-terminal glycine of the small subunit of EC 2.8.1.12, molybdopterin synthase. In the human, the reaction is catalysed by the rhodanese-like C-terminal domain (cf. EC 2.8.1.1) of the MOCS3 protein, a bifunctional protein that also contains EC 2.7.7.80, molybdopterin-synthase adenylyltransferase, at the N-terminal domain.
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
CnxF protein, IscS, L-cysteine desulfurase, MOCS3, MOCS3 rhodanese-like domain, MOCS3-RLD, MoeB, molybdenum cofactor biosynthesis protein, molybdenum cofactor synthesis protein 3, molybdopterin synthase sulfurase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
[molybdopterin-synthase sulfur-carrier protein]-Gly-Gly-AMP + [cysteine desulfurase]-S-sulfanyl-L-cysteine + reduced acceptor = AMP + [molybdopterin-synthase sulfur-carrier protein]-Gly-NH-CH2-C(O)SH + [cysteine desulfurase]-L-cysteine + oxidized acceptor
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