title: Expression of CYP2M1, CYP2K1, and CYP3A27 in brain, blood, small intestine, and other tissues of rainbow trout.
abstract: Expression of five constitutive forms of cytochrome P450 [(LMC1 (CYP2M1), LMC2 (CYP2K1), LMC3, LMC4, and LMC5 (CYP3A27)] in selected tissues from sexually immature 2-year old female and male rainbow trout (Oncorhynchus mykiss) were examined at the translational level by Western blot using polyclonal antibodies raised in rabbits against those purified trout hepatic P450s. Tissues examined were from brain, liver, muscle, blood, head kidney, trunk kidney, upper intestine, stomach, heart, and gonad (ovary or testis). The results showed that the liver was the major organ for expression of all the trout P450s studied. Trunk kidney was the secondary expression site except for LMC5. Selective translational expression of these P450 isoforms or similar proteins was observed for LCM1 and LMC5 in brain; for LMC2 and LMC5 in female upper intestine; and for LMC2 in blood plasma of the fish studied under the experimental and sampling conditions.
authors.affiliation: Department of Agricultural Chemistry and Marine/Freshwater Biomedical Sciences Center, Oregon State University, Corvallis 97331, USA.
authors.forename: I
authors.initials: I
authors.lastname: Cok
authors.forename: J L
authors.initials: JL
authors.lastname: Wang-Buhler
authors.forename: M M
authors.initials: MM
authors.lastname: Kedzierski
authors.forename: C L
authors.initials: CL
authors.lastname: Miranda
authors.forename: Y H
authors.initials: YH
authors.lastname: Yang
authors.forename: D R
authors.initials: DR
authors.lastname: Buhler
mesh_terms: D000818:Animals; D001189:Aryl Hydrocarbon Hydroxylases; D015153:Blotting, Western; D001921:Brain / Q000201:enzymology; D003577:Cytochrome P-450 Enzyme System / Q000032:analysis* / Q000097:blood / Q000145:classification; D000072467:Cytochrome P450 Family 2; D005260:Female; D029941:Fish Proteins; D007421:Intestine, Small / Q000201:enzymology; D007668:Kidney / Q000201:enzymology; D008099:Liver / Q000201:enzymology; D008297:Male; D017686:Oncorhynchus mykiss; D012737:Sex Factors; D013250:Steroid Hydroxylases / Q000032:analysis* / Q000097:blood / Q000145:classification; D009626:Terminology as Topic; D014018:Tissue Distribution
chemical_list: D029941:Fish Proteins; D003577:Cytochrome P-450 Enzyme System; D013250:Steroid Hydroxylases; D001189:Aryl Hydrocarbon Hydroxylases; C088323:CYP2K1 protein, Oncorhynchus mykiss; D000072467:Cytochrome P450 Family 2