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Biochim Biophys Acta. 1992 Apr 6;1130(3):329-32.

Mouse liver cytochrome P-450 (P-450IIIAM1): its cDNA cloning and inducibility by dexamethasone.

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Division of Analytical Biochemistry, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.


A full-length cDNA complementary to mouse liver mRNA coding for one of the cytochromes P-450 (P-450) in the P-450IIIA family, namely P-450IIIM1, was isolated and completely sequenced. The sequence of this cDNA clone, pMDex13, revealed that it encoded a polypeptide of 504 deduced amino acid residues (Mr = 57,853). The deduced amino acid sequence showed 87.3 and 84.9% identity with rat P-450IIIA1 and P-450IIIA2, respectively. The NH2-terminal 24 amino acid sequences of P-450IIIAM1 were completely identical with purified mouse P-450UT protein. RNA blot analysis showed that mRNA content of hepatic P-450IIIAM1 was remarkably increased by treatment of mice with dexamethasone.

[Indexed for MEDLINE]

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