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Literature summary for 3.1.1.7 extracted from

  • Assis, C.R.; Castro, P.F.; Amaral, I.P.; Carvalho, E.V.; Carvalho, L.B.; Bezerra, R.S.
    Characterization of acetylcholinesterase from the brain of the Amazonian tambaqui (Colossoma macropomum) and in vitro effect of organophosphorus and carbamate pesticides (2010), Environ. Toxicol. Chem., 29, 2243-2248.
    View publication on PubMed

Application

Application Comment Organism
additional information AChE from the juvenile Colossoma macropomum brain can be used as an alternative biocomponent of organophosphorus and carbamate biosensors in routine pesticide screening in the environment Colossoma macropomum

Inhibitors

Inhibitors Comment Organism Structure
Carbaryl
-
Colossoma macropomum
carbofuran
-
Colossoma macropomum
chlorpyrifos
-
Colossoma macropomum
dichlorvos
-
Colossoma macropomum
additional information diazinon and temephos do not inhibit the enzyme Colossoma macropomum
tetraethyl diphosphate
-
Colossoma macropomum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.434
-
acetylthiocholine in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum

Organism

Organism UniProt Comment Textmining
Colossoma macropomum
-
tambaqui
-

Source Tissue

Source Tissue Comment Organism Textmining
brain juvenile brain Colossoma macropomum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetylthiocholine + H2O
-
Colossoma macropomum thiocholine + acetate
-
?

Synonyms

Synonyms Comment Organism
AChE
-
Colossoma macropomum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
-
Colossoma macropomum

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
the enzyme retains approximately 70% of activity after incubation at 50°C for 30 min Colossoma macropomum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 8
-
Colossoma macropomum

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.00004
-
in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum dichlorvos
0.00092
-
in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum carbofuran
0.0037
-
in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum tetraethyl diphosphate
0.0076
-
in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum chlorpyrifos
0.0338
-
in 0.5 mM Tris-HCl buffer, pH 7.4, at 22°C Colossoma macropomum Carbaryl