IUBMB Enzyme Nomenclature


Accepted name: propane 2-monooxygenase

Reaction: propane + NADH + H+ + O2 = propan-2-ol + NAD+ + H2O

Glossary: propan-2-ol = isopropanol

Other name(s): prmABCD (gene names)

Systematic name: propane,NADH:oxygen oxidoreductase (2-hydroxylating)

Comments: The enzyme, characterized from several bacterial strains, is a multicomponent dinuclear iron monooxygenase that includes a hydroxylase, an NADH-dependent reductase, and a coupling protein. The enzyme has several additional activities, including acetone monooxygenase (acetol-forming) and phenol 4-monooxygenase.

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


1. Kotani, T., Yamamoto, T., Yurimoto, H., Sakai, Y. and Kato, N. Propane monooxygenase and NAD+-dependent secondary alcohol dehydrogenase in propane metabolism by Gordonia sp. strain TY-5. J. Bacteriol. 185 (2003) 7120-7128. [PMID: 14645271]

2. Sharp, J.O., Sales, C.M., LeBlanc, J.C., Liu, J., Wood, T.K., Eltis, L.D., Mohn, W.W. and Alvarez-Cohen, L. An inducible propane monooxygenase is responsible for N-nitrosodimethylamine degradation by Rhodococcus sp. strain RHA1. Appl. Environ. Microbiol. 73 (2007) 6930-6938. [PMID: 17873074]

3. Furuya, T., Hirose, S., Osanai, H., Semba, H. and Kino, K. Identification of the monooxygenase gene clusters responsible for the regioselective oxidation of phenol to hydroquinone in mycobacteria. Appl. Environ. Microbiol. 77 (2011) 1214-1220. [PMID: 21183637]

[EC created 2016]

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