has part has part has_part heterocycle biosynthetic process molybdopterin synthase activity cysteine desulfurase activity molybdopterin cofactor biosynthetic process molybdopterin cofactor metabolic process molybdopterin adenylyltransferase activity molybdopterin-synthase sulfurtransferase activity molybdopterin-synthase adenylyltransferase activity organophosphate biosynthetic process organic cyclic compound biosynthetic process organonitrogen compound biosynthetic process