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Literature summary for 3.1.1.7 extracted from

  • Xiao, Q.; Zhou, H.; Wei, H.; Du, H.; Tan, W.; Zhan, Y.; Pistolozzi, M.
    A new method to characterize the kinetics of cholinesterases inhibited by carbamates (2017), J. Pharm. Biomed. Anal., 144, 175-182 .
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
(R)-bambuterol monocarbamate inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens
(R)-[3-[2-(tert-butylamino)-1-hydroxyethyl]-5-(dimethylcarbamoyloxy)phenyl] N,N-dimethylcarbamate i.e. (R)-bambuterol, inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens
(RS)-[3-[2-(tert-butylamino)-1-hydroxyethyl]-5-(dimethylcarbamoyloxy)phenyl] N,N-dimethylcarbamate i.e. rac-bambuterol, inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens
(S)-bambuterol monocarbamate inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens
(S)-[3-[2-(tert-butylamino)-1-hydroxyethyl]-5-(dimethylcarbamoyloxy)phenyl] N,N-dimethylcarbamate i.e. (S)-bambuterol, inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens
additional information the inhibition of cholinesterases (ChEs) by carbamates includes a carbamylation (inhibition) step, in which the drug transfers its carbamate moiety to the active site of the enzyme and a decarbamylation (activity recovery) step, in which the carbamyl group is hydrolyzed from the enzyme. The carbamylation and decarbamylation kinetics decide the extent and the duration of the inhibition, thus the full characterization of candidate carbamate inhibitors requires the measurement of the kinetic constants describing both steps. By the analysis of the area under the inhibition-time curve of cholinesterases inhibited by carbamates it is possible to calculate the decarbamylation rate constant from the same data traditionally used to characterize only the carbamylation kinetics, therefore it is possible to obtain a full characterization of the inhibition with a single set of experiments, method validation, a simple and useful approach to reduce the time required for the characterization of carbamate inhibitors, overview Homo sapiens
rac-bambuterol monocarbamate inhibition kinetics of human acetylcholinesterase by bambuterol and bambuterol monocarbamate enantiomers Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information Michaelis-Menten kinetics Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
acetylcholine + H2O Homo sapiens
-
choline + acetate
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens P22303
-
-

Source Tissue

Source Tissue Comment Organism Textmining
erythrocyte
-
Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetylcholine + H2O
-
Homo sapiens choline + acetate
-
?
acetylthiocholine + H2O
-
Homo sapiens thiocholine + acetate
-
?

Synonyms

Synonyms Comment Organism
AChE
-
Homo sapiens
hAChE
-
Homo sapiens

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
assay at Homo sapiens

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
additional information
-
additional information inhibition kinetics Homo sapiens