Carboxylesterase 1 / CES1 (CES1) Antibody – Goat Polyclonal

This gene encodes a member of the carboxylesterase large family. The family members are responsible for the hydrolysis or transesterification of various xenobiotics, such as cocaine and heroin, and endogenous substrates with ester, thioester, or amide bonds. They may participate in fatty acyl and cholesterol ester metabolism, and may play a role in the blood-brain barrier system. This enzyme is the major liver enzyme and functions in liver drug clearance. Mutations of this gene cause carboxylesterase 1 deficiency. Three transcript variants encoding three different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

CES1: Involved in the detoxification of xenobiotics and in the activation of ester and amide prodrugs. Hydrolyzes aromatic and aliphatic esters, but has no catalytic activity toward amides or a fatty acyl-CoA ester. Hydrolyzes the methyl ester group of cocaine to form benzoylecgonine. Catalyzes the transesterification of cocaine to form cocaethylene. Displays fatty acid ethyl ester synthase activity, catalyzing the ethyl esterification of oleic acid to ethyloleate. Belongs to the type-B carboxylesterase/lipase family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Xenobiotic Metabolism - drug metabolism - other enzymes; EC 3.1.1.1; Hydrolase; EC 3.1.1.56

Chromosomal Location of Human Ortholog: 16q22.2

Cellular Component: extracellular space; endoplasmic reticulum lumen

Molecular Function: methylumbelliferyl-acetate deacetylase activity

Biological Process: epithelial cell differentiation; metabolic process; response to toxin