This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with other acceptors. The systematic name of this enzyme class is isoquinoline:acceptor 1-oxidoreductase (hydroxylating).
Lehmann M, Tshisuaka B, Fetzner S, Roger P, Lingens F (1994). "Purification and characterization of isoquinoline 1-oxidoreductase from Pseudomonas diminuta 7, a novel molybdenum-containing hydroxylase". J. Biol. Chem. 269 (15): 11254–60. PMID8157655.
Lehmann M, Tshisuaka B, Fetzner S, Lingens F (1995). "Molecular cloning of the isoquinoline 1-oxidoreductase genes from Pseudomonas diminuta 7, structural analysis of iorA and iorB, and sequence comparisons with other molybdenum-containing hydroxylases". J. Biol. Chem. 270 (24): 14420–9. PMID7782304. doi:10.1074/jbc.270.24.14420.