Enzyme Nomenclature. Recommendations
EC 1.20.1 Acting on phosphorus or arsenic in donors, with NAD(P)+ as acceptor
EC 1.20.2 With a cytochrome as acceptor
EC 1.20.4 Acting on phosphorus or arsenic in donors, with disulfide as acceptor
EC 1.20.9 With a copper protein as acceptor
EC 1.20.98 Acting on phosphorus or arsenic in donors, with other, known acceptors
EC 1.20.99 Acting on phosphorus or arsenic in donors, with other acceptors