Carboxylesterase 2 human

recombinant, expressed in mouse NSO cells, ≥95% (SDS-PAGE)

Enzyme Commission number:

Quality Level


expressed in mouse NSO cells


≥30,000 (pmol/min/μg)
≥95% (SDS-PAGE)



specific activity

≥1.0 EU/μg

mol wt

predicted mol wt ~60 kDa


0.4-0.6 mg/mL


≤1.0 EU/μg endotoxin

NCBI accession no.

shipped in

dry ice

storage temp.


Gene Information

human ... CES2(8824)

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Biochem/physiol Actions

Human carboxylesterase 2 (hCE-2) recognizes a substrate with a large alcohol group and small acyl group. Its substrate specificity may be restricted by a capability of acyl-hCE-2 conjugate formation due to the presence of conformational interference in the active site pocket. Carboxylesterases catalyze the biotransformation of several ester-containing drugs and prodrugs such as angiotensin-converting enzyme inhibitor (temocarpil, cilazapril), anti-tumor drugs (capecitabin) and narcotics.
Member of a serine esterase family that hydrolyze ester and amide bonds. Carboxylesterase 2 is an endoplasmic reticulum-bound hydrolase that plays a critical role in xenobiotic detoxification and activation for ester-containing therapeutics. Carboxylesterase 2 is also involved in the detoxification of drugs such as heroin and cocaine. This enzyme is thought to play a role in lipid metabolism.

Unit Definition

One unit will cause the hydrolysis of 1 picomole of p-nitrophenylacetate per minute at pH 7.5 at 25 deg C.

Physical form

Supplied as a solution containing sodium chloride, sodium acetate, and 20% glycerol.


Health hazard

Signal Word


Hazard Statements


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Teruko Imai
Drug metabolism and pharmacokinetics, 21(3), 173-185 (2006-07-22)
Human carboxylesterase 1 (hCE-1, CES1A1, HU1) and carboxylesterase 2 (hCE-2, hiCE, HU3) are a serine esterase involved in both drug metabolism and activation. Although both hCE-1 and hCE-2 are present in several organs, the hydrolase activity of liver and small...
XieMei Tang et al.
Critical reviews in eukaryotic gene expression, 22(3), 179-187 (2012-11-13)
Tuberculosis remains one of the most prevalent and deadly infectious diseases, largely due to the emergence of multidrug-resistant and extensive drug-resistant Mycobacterium tuberculosis, especially the coinfection with HIV. Mycobacterium Ag85 complex (Ag85A, B, and C), with a carboxylesterase consensus sequence...
Zhe-Yi Hu et al.
Analytical and bioanalytical chemistry, 405(5), 1695-1704 (2012-12-15)
Dabigatran etexilate (DABE) is an oral prodrug that is rapidly converted by esterases to dabigatran (DAB), a direct inhibitor of thrombin. To elucidate the esterase-mediated metabolic pathway of DABE, a high-performance liquid chromatography/mass spectrometry based metabolite identification and semi-quantitative estimation...
Keun Na et al.
International journal of cancer, 133(2), 408-415 (2013-01-16)
Although alpha-fetoprotein (AFP) is currently the major serologic biomarker for hepatocellular carcinoma (HCC), it cannot efficiently distinguish this cancer from other forms of liver disease in early diagnosis due to its low sensitivity. The aim of this study is to...
Takashi Nishiyama et al.
Acta crystallographica. Section D, Biological crystallography, 69(Pt 1), 44-51 (2013-01-01)
Bacterial biofilm formation is an extremely widespread phenomenon involving the secretion of a protective exopolysaccharide matrix which helps the bacteria to attach to surfaces and to overcome a variety of stresses in different environments. This matrix may also include proteins...

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