Molecular weight (DA)
60kD
Immunogen
Synthesized peptide derived from human EST1 AA range: 7-57
Specificity
This antibody detects endogenous levels of EST1 at Human/Mouse
Source
Polyclonal, Rabbit,IgG
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.142% sodium azide.
Dilution rate
WB 1:500-2000
Purification process (Immunogen)
The antibody was affinity-purified from rabbit serum by affinity-chromatography using specific immunogen.
Background
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],
Function
catalytic activity:A carboxylic ester + H(2)O = an alcohol + a carboxylate.,enzyme regulation:Activated by CHAPS.,function: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.,PTM:Contains sialic acid.,similarity:Belongs to the type-B carboxylesterase/lipase family.,subunit:Homotrimer and homohexamer. Binds to beta-glucuronidase.,tissue specificity:Expressed predominantly in liver with lower levels in heart and lung.,
Other name
Liver carboxylesterase 1 (Acyl-coenzyme A:cholesterol acyltransferase) (ACAT) (Brain carboxylesterase hBr1) (Carboxylesterase 1) (CE-1) (hCE-1) (EC 3.1.1.1) (Cocaine carboxylesterase) (Egasyn) (HMSE) (Methylumbelliferyl-acetate deacetylase 1) (EC 3.1.1.56) (Monocyte/macrophage serine esterase) (Retinyl ester hydrolase) (REH) (Serine esterase 1) (Triacylglycerol hydrolase) (TGH)
Fields
>>Drug metabolism - other enzymes
Human protein sequence Database
P23141
Mouse protein sequence database
Q8VCC2
Rat protein sequence database
Cellular localization
Endoplasmic reticulum lumen . Cytoplasm . Lipid droplet . Moves from cytoplasm to lipid droplets upon lipid loading. Associates with lipid droplets independently of triglycerides (TG) content of the droplets and hydrolyzes cholesteryl esters more efficiently from mixed droplets. .
Tissue expression
Expressed predominantly in liver with lower levels in heart and lung (PubMed:10562416). Expressed in macrophages (PubMed:11015575, PubMed:21049984, PubMed:18762277).