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Literature summary for 3.3.2.9 extracted from

  • Bhattacharya, P.; Sen, N.; Hoyer, P.B.; Keating, A.F.
    Ovarian expressed microsomal epoxide hydrolase: Role in detoxification of 4-vinylcyclohexene diepoxide and regulation by phosphatidylinositol-3 kinase signaling (2011), Toxicol. Appl. Pharmacol., 258, 118-123.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Cyclohexene oxide using a post-natal day 4 Fischer 344 rat whole ovary culture system, inhibition of mEH using cyclohexene oxide during 4-vinylcyclohexene exposure results in a greater loss of primordial and small primary follicles relative to 4-vinylcyclohexene-treated ovaries. Also, relative to controls, mEH mRNA is increased on day 4 of 4-vinylcyclohexene exposure, followed by increased mEH protein after 6 days. Inhibition of PI3K signaling increases mEH mRNA and protein expression Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome
-
Rattus norvegicus
-
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
7,12-dimethylbenz[a]anthracene + 3 H2O Rattus norvegicus
-
7,12-dimethylbenz[a]anthracene-3,4-diol-1,2-epoxide
-
?
cis-stilbene oxide + H2O Rattus norvegicus
-
(+)-(1R,2R)-1,2-diphenylethane-1,2-diol
-
?

Organism

Organism UniProt Comment Textmining
Mus musculus
-
-
-
Rattus norvegicus
-
-
-
Rattus norvegicus P07687
-
-

Source Tissue

Source Tissue Comment Organism Textmining
ovary
-
Rattus norvegicus
-
ovary exposure to 4-vinylcyclohexene results in increased mRNA and protein expression of microsomal epoxide hydrolase, and an inactive tetrol metabolite 4-(1,2-dihydroxy)ethyl-1,2-dihydroxycyclohexane can be formed in mouse ovarian follicles, potentially through detoxification action of mEH Mus musculus
-
ovary using a post-natal day 4 Fischer 344 rat whole ovary culture system, inhibition of mEH using cyclohexene oxide during 4-vinylcyclohexene exposure results in a greater loss of primordial and small primary follicles relative to 4-vinylcyclohexene-treated ovaries. Also, relative to controls, mEH mRNA is increased on day 4 of 4-vinylcyclohexene exposure, followed by increased mEH protein after 6 days. Inhibition of PI3K signaling increases mEH mRNA and protein expression Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-vinylcyclohexene + H2O
-
Rattus norvegicus ?
-
?
4-vinylcyclohexene + H2O
-
Mus musculus ? after exposure of ovary to 4-vinylcyclohexene, an inactive tetrol metabolite 4-(1,2-dihydroxy)ethyl-1,2-dihydroxycyclohexane can be formed, potentially through detoxification action of mEH ?
7,12-dimethylbenz[a]anthracene + 3 H2O
-
Rattus norvegicus 7,12-dimethylbenz[a]anthracene-3,4-diol-1,2-epoxide
-
?
7,12-dimethylbenz[a]anthracene + 3 H2O
-
Mus musculus 7,12-dimethylbenz[a]anthracene-3,4-diol-1,2-epoxide bioactivation reaction ?
cis-stilbene oxide + H2O
-
Rattus norvegicus (+)-(1R,2R)-1,2-diphenylethane-1,2-diol
-
?

Synonyms

Synonyms Comment Organism
mEH
-
Mus musculus
mEH
-
Rattus norvegicus

Expression

Organism Comment Expression
Rattus norvegicus enzyme mRNA and protein level do not change until 4 days after 4-vinylcyclohexene diepoxide exposure (0.03 mM) additional information
Mus musculus exposure to 4-vinylcyclohexene results in increased mRNA and protein expression of microsomal epoxide hydrolase up
Rattus norvegicus inhibition of PI3K signaling increases mEH mRNA and protein expression. In a post-natal day 4 Fischer 344 rat whole ovary culture system, mEH mRNA is increased on day 4 of 4-vinylcyclohexene exposure, followed by increased mEH protein after 6 days up
Rattus norvegicus the enzyme's protein level is significantly increased by phosphatidyinositol-3 kinase inhibition by 221% on day 4 and 14% on day 6 relative to control-treated ovaries up