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Literature summary for 3.1.1.8 extracted from

  • Rodriguez-Fuentes, G.; Marin-Lopez, V.; Hernandez-Marquez, E.
    Cholinesterases in Gambusia yucatana biochemical characterization and its relationship with sex and total length (2016), Bull. Environ. Contam. Toxicol., 97, 776-780 .
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1,5-bis-(4-allyldimethyl-ammoniumphenyl)-pentan-3-one dibromide BW284c51 Gambusia yucatana
eserine
-
Gambusia yucatana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information Michaelis-Menten kinetics Gambusia yucatana
0.55
-
butyrylthiocholine enzyme from muscle, pH 7.4, temperature not specified in the publication Gambusia yucatana
1.24
-
butyrylthiocholine enzyme from head, pH 7.4, temperature not specified in the publication Gambusia yucatana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
butyrylcholine + H2O Gambusia yucatana
-
choline + butyrate
-
?

Organism

Organism UniProt Comment Textmining
Gambusia yucatana
-
from Yucatan Peninsula, Mexico
-

Source Tissue

Source Tissue Comment Organism Textmining
head
-
Gambusia yucatana
-
additional information the ChE presented in head and muscle is able to hydrolyze ASChI and BSChI obtaining higher Vmax and Km with ASChI. This suggests that the ChE present in head and muscle have high affinity for BSChI (ASChI Km < BSChI Km) but is poorly hydrolyzed. With ASChI as substrate, a relatively high enzyme activity is obtained (ASChI Vmax > BSChI Vmax), but it has a smaller affinity for the enzyme with respect to BSChI Gambusia yucatana
-
muscle
-
Gambusia yucatana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.00595
-
crude enzyme, pH 7.4, temperature not specified in the publication Gambusia yucatana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
butyrylcholine + H2O
-
Gambusia yucatana choline + butyrate
-
?
butyrylthiocholine + H2O
-
Gambusia yucatana thiocholine + butyrate
-
?

Synonyms

Synonyms Comment Organism
BChE
-
Gambusia yucatana
butyrylcholinesterase
-
Gambusia yucatana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4
-
assay at Gambusia yucatana

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.00007
-
head enzyme, pH 7.4, temperature not specified in the publication Gambusia yucatana eserine
0.00009
-
muscle enzyme, pH 7.4, temperature not specified in the publication Gambusia yucatana eserine
0.00014
-
muscle enzyme, pH 7.4, temperature not specified in the publication Gambusia yucatana 1,5-bis-(4-allyldimethyl-ammoniumphenyl)-pentan-3-one dibromide
0.00037
-
head enzyme, pH 7.4, temperature not specified in the publication Gambusia yucatana 1,5-bis-(4-allyldimethyl-ammoniumphenyl)-pentan-3-one dibromide