KEGG   ENZYME: 1.14.19.7Help
Entry
EC 1.14.19.7                Enzyme                                 

Name
(S)-2-hydroxypropylphosphonic acid epoxidase;
HPP epoxidase;
HppE;
2-hydroxypropylphosphonic acid epoxidase;
Fom4;
(S)-2-hydroxypropylphosphonate epoxidase
Class
Oxidoreductases;
Acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2;
With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water
BRITE hierarchy
Sysname
(S)-2-hydroxypropylphosphonate,NADH:oxygen epoxidase
Reaction(IUBMB)
(S)-2-hydroxypropylphosphonate + NADH + H+ + O2 = (1R,2S)-epoxypropylphosphonate + NAD+ + 2 H2O [RN:R08863]
Reaction(KEGG)
Substrate
(S)-2-hydroxypropylphosphonate [CPD:C06452];
NADH [CPD:C00004];
H+ [CPD:C00080];
O2 [CPD:C00007]
Product
(1R,2S)-epoxypropylphosphonate [CPD:C06454];
NAD+ [CPD:C00003];
H2O [CPD:C00001]
Comment
Contains one non-heme iron centre per monomer [1,5]. FMN is required to mediate the transfer of reducing equivalents from NADH to the active site iron [1]. This is the last enzyme in the biosynthetic pathway of fosfomycin, a broad-spectrum antibiotic produced by certain Streptomyces species.
Pathway
Phosphonate and phosphinate metabolism
Orthology
K12903  
2-hydroxypropylphosphonate epoxidase
Reference
1  [PMID:18656958]
  Authors
Munos JW, Moon SJ, Mansoorabadi SO, Chang W, Hong L, Yan F, Liu A, Liu HW
  Title
Purification and characterization of the epoxidase catalyzing the formation of fosfomycin from Pseudomonas syringae.
  Journal
Biochemistry. 47 (2008) 8726-35.
  Organism
Streptomyces wedmorensis, Pseudomonas syringae
Reference
2  [PMID:17927218]
  Authors
Yan F, Moon SJ, Liu P, Zhao Z, Lipscomb JD, Liu A, Liu HW
  Title
Determination of the substrate binding mode to the active site iron of (S)-2-hydroxypropylphosphonic acid epoxidase using 17O-enriched substrates and substrate analogues.
  Journal
Biochemistry. 46 (2007) 12628-38.
  Organism
Streptomyces wedmorensis
Reference
3  [PMID:7500951]
  Authors
Hidaka T, Goda M, Kuzuyama T, Takei N, Hidaka M, Seto H
  Title
Cloning and nucleotide sequence of fosfomycin biosynthetic genes of Streptomyces  wedmorensis.
  Journal
Mol. Gen. Genet. 249 (1995) 274-80.
  Organism
Streptomyces wedmorensis
Reference
4  [PMID:15315444]
  Authors
Liu P, Mehn MP, Yan F, Zhao Z, Que L Jr, Liu HW
  Title
Oxygenase activity in the self-hydroxylation of (s)-2-hydroxypropylphosphonic acid epoxidase involved in fosfomycin biosynthesis.
  Journal
J. Am. Chem. Soc. 126 (2004) 10306-12.
  Organism
Streptomyces wedmorensis
Reference
5  [PMID:16015285]
  Authors
Higgins LJ, Yan F, Liu P, Liu HW, Drennan CL
  Title
Structural insight into antibiotic fosfomycin biosynthesis by a mononuclear iron  enzyme.
  Journal
Nature. 437 (2005) 838-44.
  Organism
Streptomyces wedmorensis
Reference
6  [PMID:16511089]
  Authors
Cameron S, McLuskey K, Chamberlayne R, Hallyburton I, Hunter WN
  Title
Initiating a crystallographic analysis of recombinant (S)-2-hydroxypropylphosphonic acid epoxidase from Streptomyces wedmorensis.
  Journal
Acta. Crystallogr. Sect. F. Struct. Biol. Cryst. Commun. 61 (2005) 534-6.
  Organism
Streptomyces wedmorensis
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
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BRENDA, the Enzyme Database: 

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