4ap8

Structural highlights

Disease

[MOC2B_HUMAN] Molybdenum cofactor deficiency type B (MOCOD type B) [MIM:252150]: Autosomal recessive disease which leads to the pleiotropic loss of all molybdoenzyme activities and is characterized by severe neurological damage, neonatal seizures and early childhood death. Note=The disease is caused by mutations affecting the gene represented in this entry.

Function

[MOC2B_HUMAN] Catalytic subunit of the molybdopterin synthase complex, a complex that catalyzes the conversion of precursor Z into molybdopterin. Acts by mediating the incorporation of 2 sulfur atoms from thiocarboxylated MOCS2A into precursor Z to generate a dithiolene group.^{[1] [2]}

References

1. ↑ Leimkuhler S, Freuer A, Araujo JA, Rajagopalan KV, Mendel RR. Mechanistic studies of human molybdopterin synthase reaction and characterization of mutants identified in group B patients of molybdenum cofactor deficiency. J Biol Chem. 2003 Jul 11;278(28):26127-34. Epub 2003 May 5. PMID:12732628 doi:10.1074/jbc.M303092200
2. ↑ Matthies A, Rajagopalan KV, Mendel RR, Leimkuhler S. Evidence for the physiological role of a rhodanese-like protein for the biosynthesis of the molybdenum cofactor in humans. Proc Natl Acad Sci U S A. 2004 Apr 20;101(16):5946-51. Epub 2004 Apr 8. PMID:15073332 doi:10.1073/pnas.0308191101