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3.3.2.9: microsomal epoxide hydrolase

This is an abbreviated version!
For detailed information about microsomal epoxide hydrolase, go to the full flat file.

Word Map on EC 3.3.2.9

Reaction

1-(4-methoxyphenyl)-N-methyl-N-[(3-methyloxetan-3-yl)methyl]methanamine
+
H2O
=
2-({[(4-methoxyphenyl)methyl](methyl)amino}methyl)-2-methylpropane-1,3-diol

Synonyms

alpha,beta fold epoxide hydrolase, alpha,beta-fold type EH, E1-b', EC 3.3.2.3, EC 4.2.1.63, EC 4.2.1.64, EH1, EH2, Eha, EHb, EPHX, EPHX 1, EPHX1, EPOX, epoxide hydrolase, HYL1, JH epoxide hydrolase, JHEH, juvenile hormone epoxide hydrolase, mEH, mEH-like protein, mEH1, mEPHX, microsomal, microsomal EH, microsomal EPHX1, Microsomal epoxide hydrolase, microsomal epoxide hydrolase 1, microsomal epoxide hydrolase-like protein, microsomal xenobiotic epoxide hydrolase, More, PNSO hydrolase, SEH, styrene-epoxide hydrolase, Tcjheh-r1, Tcjheh-r3, XEHase, xenobiotic epoxide hydrolase

ECTree

     3 Hydrolases
         3.3 Acting on ether bonds
             3.3.2 Ether hydrolases
                3.3.2.9 microsomal epoxide hydrolase

Systematic Name

Systematic Name on EC 3.3.2.9 - microsomal epoxide hydrolase

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SYSTEMATIC NAME
IUBMB Comments
cis-stilbene-oxide hydrolase
This is a key hepatic enzyme that catalyses the hydrolytic ring opening of oxiranes (epoxides) and oxetanes to give the corresponding diols. The enzyme is involved in the metabolism of numerous substrates including the stereoselective hydrolytic ring opening of 7-oxabicyclo[4.1.0]hepta-2,4-dienes (arene oxides) to the corresponding trans-dihydrodiols. The reaction proceeds via a triad mechanism and involves the formation of an hydroxyalkyl-enzyme intermediate. Five epoxide-hydrolase enzymes have been identified in vertebrates to date: EC 3.3.2.6 (leukotriene-A4 hydrolase), EC 3.3.2.7 (hepoxilin-epoxide hydrolase), EC 3.3.2.9 (microsomal epoxide hydrolase), EC 3.3.2.10 (soluble epoxide hydrolase) and EC 3.3.2.11 (cholesterol-5,6-oxide hydrolase).