IUBMB Enzyme Nomenclature


Accepted name: kanamycin B dioxygenase

Reaction: kanamycin B + 2-oxoglutarate + O2 = 2′-dehydrokanamycin A + succinate + NH3 + CO2

For diagram of reaction, click here

Other name(s): kanJ (gene name)

Systematic name: kanamycin-B,2-oxoglutarate:oxygen oxidoreductase (deaminating, 2′-hydroxylating)

Comments: Requires Fe2+ and ascorbate. Found in the bacterium Streptomyces kanamyceticus where it is involved in the conversion of the aminoglycoside antibiotic kanamycin B to kanamycin A.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:


1. Sucipto, H., Kudo, F. and Eguchi, T. The last step of kanamycin biosynthesis: unique deamination reaction catalyzed by the α-ketoglutarate-dependent nonheme iron dioxygenase KanJ and the NADPH-dependent reductase KanK. Angew. Chem. Int. Ed. Engl. 51 (2012) 3428-3431. [PMID: 22374809]

[EC created 2013, modified 2013]

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