IUBMB Enzyme Nomenclature


Accepted name: 2'-dehydrokanamycin reductase

Reaction: kanamycin A + NADP+ = 2'-dehydrokanamycin A + NADPH + H+

For diagram of reaction click here.

Glossary: kanamycin A = (1S,2R,3R,4S,6R)-4,6-diamino-3-(6-amino-6-deoxy-α-D-glucopyranosyloxy)-2-hydroxycyclohexyl 3-amino-3-deoxy-α-D-glucopyranoside (
2'-dehydrokanamycin A = (1S,2R,3R,4S,6R)-4,6-diamino-3-[(6-amino-6-deoxy-α-D-arabino-hexopyranosyl-2-ulose)oxy]-2-hydroxycyclohexyl 3-amino-3-deoxy-α-D-glucopyranoside

Other name(s): kanK (gene name, ambiguous)

Systematic name: kanamycin A:NADP+ oxidoreductase

Comments: Found in the bacterium Streptomyces kanamyceticus where it is involved in the conversion of kanamycin B to kanamycin A.

Links to other databases: BRENDA, EXPASY, KEGG Metacyc, 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]

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