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Literature summary for 3.3.2.10 extracted from

  • Morisseau, C.; Hammock, B.D.
    Epoxide hydrolases: mechanisms, inhibitor designs, and biological roles (2005), Annu. Rev. Pharmacol. Toxicol., 45, 311-333.
    View publication on PubMed

Application

Application Comment Organism
medicine the enzyme is a target for regulation of blood pressure, and inhibition of inflammation, atherosclerosis, kidney failure, and cancer progression Homo sapiens
pharmacology the enzyme is a target for inhibitor design Mus musculus
pharmacology the enzyme is a target for inhibitor design Homo sapiens
pharmacology the enzyme is a target for inhibitor design Rattus norvegicus

Crystallization (Commentary)

Crystallization (Comment) Organism
-
Homo sapiens
enzyme with bound inhibitor N-cyclohexyl-N'-decylurea Mus musculus

Protein Variants

Protein Variants Comment Organism
H431S mutation of His431 results in total loss of activity, the mutant can form the intermediate but cannot hydrolyze it Mus musculus
Y381F site-directed mutagenesis, mutant shows 90% reduced activity Mus musculus
Y465F site-directed mutagenesis, mutant shows 90% reduced activity Mus musculus

Inhibitors

Inhibitors Comment Organism Structure
1,3-disubstituted amides potent and stable inhibition, Ki in the nanomolar range, mechanism Homo sapiens
1,3-disubstituted amides potent and stable inhibition, Ki in the nanomolar range, mechanism Mus musculus
1,3-disubstituted amides potent and stable inhibition, Ki in the nanomolar range, mechanism Rattus norvegicus
1,3-disubstituted carbamate derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Homo sapiens
1,3-disubstituted carbamate derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Mus musculus
1,3-disubstituted carbamate derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Rattus norvegicus
1,3-disubstituted urea derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Homo sapiens
1,3-disubstituted urea derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Mus musculus
1,3-disubstituted urea derivatives potent and stable inhibition, Ki in the nanomolar range, mechanism Rattus norvegicus
Cd2+
-
Homo sapiens
Cd2+
-
Mus musculus
Cd2+
-
Rattus norvegicus
Cu2+
-
Homo sapiens
Cu2+
-
Mus musculus
Cu2+
-
Rattus norvegicus
Hg2+
-
Homo sapiens
Hg2+
-
Mus musculus
Hg2+
-
Rattus norvegicus
additional information most enzyme inhibitors do not influence the enzyme's phosphatase activity Homo sapiens
N-cyclohexyl-N'-decylurea
-
Mus musculus
Zn2+ noncompetitive, inhibits epoxide hydrolase and phosphatase activities, allosteric mechanism Homo sapiens
Zn2+
-
Mus musculus
Zn2+
-
Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetics, the hydrolysis of the intermediate is the rate-limiting step Mus musculus
additional information
-
additional information kinetics, the hydrolysis of the intermediate is the rate-limiting step Homo sapiens
additional information
-
additional information kinetics, the hydrolysis of the intermediate is the rate-limiting step Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Mus musculus 5829
-
cytosol
-
Homo sapiens 5829
-
cytosol
-
Rattus norvegicus 5829
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
62500
-
1 * 62500 Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Mus musculus the enzyme is involved in regulation of blood pressure and inflammation ?
-
?
additional information Homo sapiens the enzyme is involved in regulation of blood pressure and inflammation ?
-
?
additional information Rattus norvegicus the enzyme is involved in regulation of blood pressure and inflammation ?
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-
Mus musculus
-
-
-
Rattus norvegicus
-
-
-

Reaction

Reaction Comment Organism Reaction ID
an epoxide + H2O = a glycol two step mechanism with formation of of a hydroxyl-alkyl-enzyme intermediate, catalytic triad is Asp333-His523-Asp495 with polarizing residues Tyr381 and Tyr465, catalytic cycle Mus musculus
an epoxide + H2O = a glycol two step mechanism with formation of of a hydroxyl-alkyl-enzyme intermediate, the catalytic triad is Asp333-His523-Asp495, catalytic cycle Rattus norvegicus
an epoxide + H2O = a glycol two step mechanism with formation of of a hydroxyl-alkyl-enzyme intermediate, the catalytic triad is Asp334-His523-Asp495 with polarizing residues Tyr382 and Tyr465, catalytic cycle Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
kidney
-
Mus musculus
-
kidney
-
Homo sapiens
-
kidney
-
Rattus norvegicus
-
liver
-
Mus musculus
-
liver
-
Homo sapiens
-
liver
-
Rattus norvegicus
-
additional information wide tissue distribution Mus musculus
-
additional information wide tissue distribution Homo sapiens
-
additional information wide tissue distribution Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
chalcone oxides + H2O
-
Mus musculus ?
-
?
chalcone oxides + H2O
-
Homo sapiens ?
-
?
chalcone oxides + H2O
-
Rattus norvegicus ?
-
?
additional information the enzyme is involved in regulation of blood pressure and inflammation Mus musculus ?
-
?
additional information the enzyme is involved in regulation of blood pressure and inflammation Homo sapiens ?
-
?
additional information the enzyme is involved in regulation of blood pressure and inflammation Rattus norvegicus ?
-
?
additional information sEH prefers gem-di-, trans-di-, cis-di-, tri-, and tetra-substituted epoxides Mus musculus ?
-
?
additional information sEH prefers gem-di-, trans-di-, cis-di-, tri-, and tetra-substituted epoxides Rattus norvegicus ?
-
?
additional information the enzyme also shows phosphatase activity, EC 3.1.3.76, sEH prefers gem-di-, trans-di-, cis-di-, tri-, and tetra-substituted epoxides Homo sapiens ?
-
?
stearic acid epoxide + H2O
-
Homo sapiens ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 62500 Homo sapiens
More quarternary structure Mus musculus
More quarternary structure Rattus norvegicus
More quarternary structure, monomers interact in a head-to-tail manner, the enzyme contains the DXDX(T/V) motif Homo sapiens

Synonyms

Synonyms Comment Organism
EPXH1
-
Homo sapiens
EPXH2
-
Homo sapiens
More the enzyme belongs to the alpha/beta-hydrolase fold family of proteins Mus musculus
More the enzyme belongs to the alpha/beta-hydrolase fold family of proteins Homo sapiens
More the enzyme belongs to the alpha/beta-hydrolase fold family of proteins Rattus norvegicus
SEH
-
Mus musculus
SEH
-
Homo sapiens
SEH
-
Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 7.5
-
Homo sapiens

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.02
-
Zn2+
-
Homo sapiens