Protein Information

Name cytochrome P450 (protein family or complex)
Synonyms cytochrome P450; cytochrome P 450; CYP450; CYP 450

Compound Information

Name ethylene oxide
CAS oxirane

Reference List

PubMed Abstract RScore(About this table)
15141094 Fennell TR, Snyder RW, Parkinson C, Murphy J, James RA: The effect of ethylene exposure on ethylene oxide in blood and on hepatic cytochrome p450 in Fischer rats. Toxicol Sci. 2004 Sep;81(1):7-13. Epub 2004 May 12.

It is metabolized to ethylene oxide (EO) by cytochrome P450.
41(0,1,2,6) Details
17287153 Deng G, Lin DQ, Yao SJ, Mei LH: Aqueous micellar two-phase system composed of hyamine-type hydrophobically modified ethylene oxide and application for cytochrome P450 BM-3 separation. J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Jun 1;852(1-2):167-73. Epub 2007 Jan 13.
32(0,1,1,2) Details
16870169 Munter T, Cottrell L, Ghai R, Golding BT, Watson WP: The metabolism and molecular toxicology of chloroprene. Chem Biol Interact. 2007 Mar 20;166(1-3):323-31. Epub 2006 Jun 3.


Chloroprene (2-chloro-1,3-butadiene, 1) is oxidised by cytochrome P450 enzymes in mammalian liver microsomes to several metabolites, some of which are reactive towards DNA and are mutagenic.
2(0,0,0,2) Details
14976339 Himmelstein MW, Carpenter SC, Hinderliter PM: Kinetic modeling of beta-chloroprene metabolism: I. Toxicol Sci. 2004 May;79(1):18-27. Epub 2004 Feb 19.


Estimates for Vmax and Km for cytochrome P450-dependent oxidation of CD in liver microsomes ranged from 0.068 to 0.29 micromol/h/mg protein and 0.53 to 1.33 microM, respectively.
1(0,0,0,1) Details
17263564 Marsden DA, Jones DJ, Lamb JH, Tompkins EM, Farmer PB, Brown K: Determination of endogenous and exogenously derived N7-(2-hydroxyethyl) guanine adducts in ethylene oxide-treated rats. Chem Res Toxicol. 2007 Feb;20(2):290-9. Epub 2007 Jan 31.

It is also formed endogenously as a result of cytochrome P450-mediated metabolism of ethylene, which is ubiquitous in the environment.
1(0,0,0,1) Details