Protein Information

Name vitamin K epoxide reductase
Synonyms Vitamin K epoxide reductase; IMAGE3455200; MST134; MST576; MSTP134; MSTP576; Phylloquinone epoxide reductase; UNQ308…

Compound Information

Name difenacoum
CAS

Reference List

PubMed Abstract RScore(About this table)
6807339 Hildebrandt EF, Suttie JW: Mechanism of coumarin action: sensitivity of vitamin K metabolizing enzymes of normal and warfarin-resistant rat liver. Biochemistry. 1982 May 11;21(10):2406-11.

The anticoagulant difenacoum is an effective rodenticide in the warfarin-resistant strain of rats, and the only enzyme studied from warfarin-resistant rat liver that demonstrated a significant differential inhibition by the two coumarins used was the vitamin K epoxide reductase.
88(1,1,2,3) Details
19752778 Grandemange A, Kohn MH, Lasseur R, Longin-Sauvageon C, Berny P, Benoit E: Consequences of the Y139F Vkorc1 mutation on resistance to AVKs: in-vivo investigation in a 7th generation of congenic Y139F strain of rats. Pharmacogenet Genomics. 2009 Oct;19(10):742-50.

However, the physiological response to the super-warfarins, difenacoum and difethialone, may be strongly dependent on other genes located outside the congenic interval (28.3 cM) bracketing the Vkorc1 in our F7 generation congenic strain.
11(0,0,1,6) Details
2424118 Wallin R, Patrick SD, Ballard JO: Vitamin K antagonism of coumarin intoxication in the rat. Thromb Haemost. 1986 Apr 30;55(2):235-9.

An in vitro system which expresses all enzyme activities related to vitamin K-dependent carboxylation of blood clotting factors was prepared from livers of rats overdosed with warfarin, difenacoum and dicumarol respectively.
Vitamin K epoxide reductase was also inactive which strongly suggests that this enzyme catalyzes the activity of pathway I in vivo.
1(0,0,0,1) Details
3978316 Breckenridge AM, Cholerton S, Hart JA, Park BK, Scott AK: A study of the relationship between the pharmacokinetics and the pharmacodynamics of the 4-hydroxycoumarin anticoagulants warfarin, difenacoum and brodifacoum in the rabbit. Br J Pharmacol. 1985 Jan;84(1):81-91.

0(0,0,0,0) Details