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Literature summary for 3.1.1.1 extracted from

  • Valles, S.M.; Oi, F.M.; Strong, C.A.
    Purification and characterization of trans-permethrin metabolizing microsomal esterases from workers of the eastern subterranean termite, Reticulitermes flavipes (Kollar) (2001), Insect Biochem. Mol. Biol., 31, 715-725.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
chlorpyrifos
-
Reticulitermes flavipes
cypermethrin
-
Reticulitermes flavipes
additional information no inhibition by eserine, CaCl2, p-hydroxymercuribenzoate, imidacloprid, fipronil, and piperonyl butoxide Reticulitermes flavipes
paraoxon
-
Reticulitermes flavipes
PMSF
-
Reticulitermes flavipes
propoxur
-
Reticulitermes flavipes
S,S,S-tributylphosphorotrithionate
-
Reticulitermes flavipes
trans/cis-permethrin substrate inhibition Reticulitermes flavipes

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.027
-
Alpha-naphthyl acetate isozyme ME3, pH 7.0, 27°C Reticulitermes flavipes
0.048
-
Alpha-naphthyl acetate isozyme ME2, pH 7.0, 27°C Reticulitermes flavipes
0.052
-
Alpha-naphthyl acetate isozyme ME1, pH 7.0, 27°C Reticulitermes flavipes

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome 3 isozymes ME1, ME2, and ME3 Reticulitermes flavipes
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
62000
-
isozyme ME3, gel filtration Reticulitermes flavipes
63000
-
1 * 63000, all isozymes, SDS-PAGE Reticulitermes flavipes
64000
-
isozyme ME2, gel filtration Reticulitermes flavipes
69000
-
isozyme ME1, gel filtration Reticulitermes flavipes

Organism

Organism UniProt Comment Textmining
Reticulitermes flavipes
-
eastern subterranean termite, workers, 3 isozymes ME1, ME2, and ME3, which are B type serine esterases
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein N-glycosylation, isozymes ME1, ME2, and ME3 Reticulitermes flavipes

Purification (Commentary)

Purification (Comment) Organism
by preparative isoelectric focusing, ME1 74.8fold, ME2 67.5fold, and ME3 26.3fold Reticulitermes flavipes

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.29
-
purified isozyme ME3, substrate alpha-naphthyl acetate Reticulitermes flavipes
0.35
-
purified isozyme ME2, substrate trans-permethrin Reticulitermes flavipes
0.36
-
purified isozyme ME1, substrate trans-permethrin Reticulitermes flavipes
0.65
-
purified isozyme ME3, substrate trans-permethrin Reticulitermes flavipes
0.76
-
purified isozyme ME1, substrate alpha-naphthyl acetate Reticulitermes flavipes
0.84
-
purified isozyme ME2, substrate alpha-naphthyl acetate Reticulitermes flavipes

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alpha-naphthyl acetate + H2O
-
Reticulitermes flavipes alpha-naphthol + acetate
-
?
alpha-naphthyl butyrate + H2O
-
Reticulitermes flavipes alpha-naphthol + butyrate
-
?
alpha-naphthyl caprate + H2O
-
Reticulitermes flavipes alpha-naphthol + caprate
-
?
alpha-naphthyl caproate + H2O
-
Reticulitermes flavipes alpha-naphthol + caproate
-
?
alpha-naphthyl caprylate + H2O
-
Reticulitermes flavipes alpha-naphthol + caprylate
-
?
additional information no activity with substrate of greater chain length than 6 C-atoms Reticulitermes flavipes ?
-
?
trans-permethrin + H2O
-
Reticulitermes flavipes ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 63000, all isozymes, SDS-PAGE Reticulitermes flavipes

Synonyms

Synonyms Comment Organism
ME
-
Reticulitermes flavipes

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35
-
isozymes ME1 and ME2 Reticulitermes flavipes
45
-
isozyme ME3 Reticulitermes flavipes

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Reticulitermes flavipes

pI Value

Organism Comment pI Value Maximum pI Value
Reticulitermes flavipes isozyme ME1, isoelectric focusing
-
4.61
Reticulitermes flavipes isozyme ME2, isoelectric focusing 4.8 4.7
Reticulitermes flavipes isozyme ME3, isoelectric focusing
-
4.77