Protein Information

Name hCE 2
Synonyms CE 2; ICE; CES 2; CES2; CES2 protein; Carboxylesterase 2; Carboxylesterase 2 isoform 1 variant; Carboxylesterase 2 precursor…

Compound Information

Name pyrethrins
CAS pyrethrins

Reference List

PubMed Abstract RScore(About this table)
16359636 Nishi K, Huang H, Kamita SG, Kim IH, Morisseau C, Hammock BD: Characterization of pyrethroid hydrolysis by the human liver carboxylesterases hCE-1 and hCE-2. Arch Biochem Biophys. 2006 Jan 1;445(1):115-23.

4(0,0,0,4) Details
16387282 Ross MK, Borazjani A, Edwards CC, Potter PM: Hydrolytic metabolism of pyrethroids by human and other mammalian carboxylesterases. Biochem Pharmacol. 2006 Feb 28;71(5):657-69. Epub 2006 Jan 4.


Pure human CEs (hCE-1 and hCE-2), a rabbit CE (rCE), and two rat CEs (Hydrolases A and B) were used to study the hydrolytic metabolism of the following pyrethroids: 1Rtrans-resmethrin (bioresmethrin), 1RStrans-permethrin, and 1RScis-permethrin. hCE-1 and hCE-2 hydrolyzed trans-permethrin 8- and 28-fold more efficiently than cis-permethrin (when k (cat)/K (m) values were compared), respectively.
3(0,0,0,3) Details
17442360 Crow JA, Borazjani A, Potter PM, Ross MK: Hydrolysis of pyrethroids by human and rat tissues: examination of intestinal, liver and serum carboxylesterases. Toxicol Appl Pharmacol. 2007 May 15;221(1):1-12. Epub 2007 Mar 12.


The major esterase in human intestine is carboxylesterase 2 (hCE2).
1(0,0,0,1) Details
16855054 Godin SJ, Scollon EJ, Hughes MF, Potter PM, DeVito MJ, Ross MK: Species differences in the in vitro metabolism of deltamethrin and esfenvalerate: differential oxidative and hydrolytic metabolism by humans and rats. Drug Metab Dispos. 2006 Oct;34(10):1764-71. Epub 2006 Jul 19.


Results of CE metabolism revealed that human carboxylesterase 1 (hCE-1) was markedly more active toward deltamethrin than the class 1 rat CEs hydrolase A and B and the class 2 human CE (hCE-2); however, hydrolase A metabolized esfenvalerate 2-fold faster than hCE-1, whereas hydrolase B and hCE-1 hydrolyzed esfenvalerate at equal rates.
1(0,0,0,1) Details