IUBMB Enzyme Nomenclature


Accepted name: 2-hydroxyethylphosphonate dioxygenase

Reaction: 2-hydroxyethylphosphonate + O2 = hydroxymethylphosphonate + formate

For diagram of reaction click here.

Other name(s): HEPD; phpD (gene name); 2-hydroxyethylphosphonate:O2 1,2-oxidoreductase (hydroxymethylphosphonate forming)

Systematic name: 2-hydroxyethylphosphonate:oxygen1,2-oxidoreductase (hydroxymethylphosphonate forming)

Comments: Requires non-heme-Firon(II). Isolated from some bacteria including Streptomyces hygroscopicus and Streptomyces viridochromogenes. The pro-R hydrogen at C-2 of the ethyl group is retained by the formate ion. Any stereochemistry at C-1 of the ethyl group is lost. One atom from dioxygen is present in each product. Involved in phosphinothricin biosynthesis.

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


1. Cicchillo, R.M., Zhang, H., Blodgett, J.A., Whitteck, J.T., Li, G., Nair, S.K., van der Donk, W.A. and Metcalf, W.W. An unusual carbon-carbon bond cleavage reaction during phosphinothricin biosynthesis. Nature 459 (2009) 871-874. [PMID: 19516340]

2. Whitteck, J.T., Malova, P., Peck, S.C., Cicchillo, R.M., Hammerschmidt, F. and van der Donk, W.A. On the stereochemistry of 2-hydroxyethylphosphonate dioxygenase. J. Am. Chem. Soc. 133 (2011) 4236-4239. [PMID: 21381767]

3. Peck, S.C., Cooke, H.A., Cicchillo, R.M., Malova, P., Hammerschmidt, F., Nair, S.K. and van der Donk, W.A. Mechanism and substrate recognition of 2-hydroxyethylphosphonate dioxygenase. Biochemistry 50 (2011) 6598-6605. [PMID: 21711001]

[EC created 2012]

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