Biology:Molybdopterin synthase sulfurtransferase

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Molybdopterin synthase sulfurtransferase
Identifiers
EC number2.8.1.11
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Molybdopterin synthase sulfurtransferase (EC 2.8.1.11, adenylyltransferase and sulfurtransferase MOCS3, Cnx5 (gene), molybdopterin synthase sulfurylase) is an enzyme with systematic name persulfurated L-cysteine desulfurase:(molybdopterin-synthase sulfur-carrier protein)-Gly-Gly sulfurtransferase.[1][2][3][4] This enzyme catalyses the following chemical reaction

[molybdopterin-synthase sulfur-carrier protein]-Gly-Gly-AMP + [cysteine desulfurase]-S-sulfanyl-L-cysteine [math]\displaystyle{ \rightleftharpoons }[/math] AMP + [molybdopterin-synthase sulfur-carrier protein]-Gly-NH-CH2-C(O)SH + cysteine desulfurase

The enzyme transfers sulfur to form a thiocarboxylate moiety on the C-terminal glycine of the small subunit of molybdopterin synthase.

References

  1. "Molybdenum cofactor biosynthesis in humans: identification of a persulfide group in the rhodanese-like domain of MOCS3 by mass spectrometry". Biochemistry 44 (21): 7912–20. May 2005. doi:10.1021/bi0503448. PMID 15910006. 
  2. "A sulfurtransferase is required in the transfer of cysteine sulfur in the in vitro synthesis of molybdopterin from precursor Z in Escherichia coli". The Journal of Biological Chemistry 276 (25): 22024–31. June 2001. doi:10.1074/jbc.M102072200. PMID 11290749. 
  3. "Crystal structure of YnjE from Escherichia coli, a sulfurtransferase with three rhodanese domains". Protein Science 18 (12): 2480–91. December 2009. doi:10.1002/pro.260. PMID 19798741. 
  4. "The identification of a novel protein involved in molybdenum cofactor biosynthesis in Escherichia coli". The Journal of Biological Chemistry 286 (41): 35801–12. October 2011. doi:10.1074/jbc.M111.282368. PMID 21856748. 

External links