Protein Information

Name Delta8 Delta7 sterol isomerase
Synonyms CDPX 2; CPX; CDPX2; CHO 2; CHO2; CPXD; Cholestenol delta isomerase; D8 D7 sterol isomerase…

Compound Information

Name fenpropimorph
CAS

Reference List

PubMed Abstract RScore(About this table)
8798407 Silve S, Dupuy PH, Labit-Lebouteiller C, Kaghad M, Chalon P, Rahier A, Taton M, Lupker J, Shire D, Loison G: Emopamil-binding protein, a mammalian protein that binds a series of structurally diverse neuroprotective agents, exhibits delta8-delta7 sterol isomerase activity in yeast. J Biol Chem. 1996 Sep 13;271(37):22434-40.

In contrast, the recombinant strains are much less susceptible to the sterol inhibition effect of haloperidol and fenpropimorph, as compared with wild type yeast strains.
4(0,0,0,4) Details
9618436 Paul R, Silve S, De Nys N, Dupuy PH, Bouteiller CL, Rosenfeld J, Ferrara P, Le Fur G, Casellas P, Loison G: Both the immunosuppressant SR31747 and the antiestrogen tamoxifen bind to an emopamil-insensitive site of mammalian Delta8-Delta7 sterol isomerase. J Pharmacol Exp Ther. 1998 Jun;285(3):1296-302.

Some drugs, like cis-flupentixol, trifluoperazine, 7-ketocholestanol and tamoxifen, inhibit SR31747 binding only with the mammalian enzymes, whereas other drugs, like haloperidol and fenpropimorph, are much more effective with the yeast enzyme than with the mammalian ones.
2(0,0,0,2) Details
10734216 Soustre I, Dupuy PH, Silve S, Karst F, Loison G: Sterol metabolism and ERG2 gene regulation in the yeast Saccharomyces cerevisiae. FEBS Lett. 2000 Mar 24;470(2):102-6.


We have taken advantage of this property to study the regulation of the Delta8-Delta7-sterol isomerase-encoding ERG2 gene in an ergosterol auxotrophic mutant devoid of squalene-synthase activity.
1(0,0,0,1) Details
9146879 Moebius FF, Reiter RJ, Hanner M, Glossmann H: High affinity of sigma 1-binding sites for sterol isomerization inhibitors: evidence for a pharmacological relationship with the yeast sterol C8-C7 isomerase. Br J Pharmacol. 1997 May;121(1):1-6.


Among the compounds which bound with high affinity to native hepatic and cerebral as well as to yeast expressed sigma 1-binding sites were the agricultural fungicide fenpropimorph (Ki 0.005 nM), the antihypocholesterinaemic drugs triparanol (Ki 7.0 nM), AY-9944 (Ki, 0.46 nM) and MDL28,815 (Ki 0.16 nM), the enantiomers of the ovulation inducer clomiphene (Ki 5.5 and 12 nM, respectively) and the antioestrogene tamoxifen (Ki 26 nM). 3.
0(0,0,0,0) Details