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MoaC family. Members of this family are involved in molybdenum cofactor (Moco) biosynthesis, an essential cofactor of a diverse group of redox enzymes. MoaC, a small hexameric protein, converts, together with MoaA, a guanosine derivative to the precursor Z by inserting the carbon-8 of the purine between the 2' and 3' ribose carbon atoms, which is the first of three phases of Moco biosynthesis.
Jiyao W et al.(2023). "The conserved domain database in 2023.",