Ligand Binding of Organic Sulfides to Microsomal Cytochrome P-450
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چکیده
منابع مشابه
High affinity binding of substrate and effector ligands to testicular microsomal cytochrome P-450.
The binding characteristics of substrate and effector ligands to testicular microsomal cytochrome P-450 (17 alpha-hydroxylase/C17-20 lyase) have been investigated by difference spectroscopy. Steroid products and their analogs induce oxygen-mediated damage of microsomal P-450 activities of cultured Leydig cells, whereas testosterone acetate protects P-450 from this damage [1]. Progesterone and 1...
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متن کاملPurified Liver Microsomal NADPH-Cytochrome P-450 Reductase
NADPH-cytochrome P-450 reductase was isolated from liver microsomes of phenobarbital-induced rats. The enzyme exhibits an apparent minimal molecular weight of 76,000 as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and contains 1 molecule each of FMN and FAD. Trypsin treatment of the reductase yields an enzyme with an apparent minimal molecular weight of 69,000 which r...
متن کاملPurified Liver Microsomal NADPH-Cytochrome P-450 Reductase
NADPH-cytochrome P-450 reductase was isolated from liver microsomes of phenobarbital-induced rats. The enzyme exhibits an apparent minimal molecular weight of 76,000 as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and contains 1 molecule each of FMN and FAD. Trypsin treatment of the reductase yields an enzyme with an apparent minimal molecular weight of 69,000 which r...
متن کاملInteraction of liver microsomal cytochrome P-450 and NADPH-cytochrome P-450 reductase in the presence and absence of lipid.
Phospholipid has been reported to be necessary for optimal catalytic activity of a number of mammalian cytochrome P-450 (P-450) systems. We also confirm that a number of individual phospholipids and mixtures, used as soluble monomers or phospholipid vesicles, show activation of 7-ethoxycoumarin O-deethylase activity by an enzyme system composed of rat liver microsomal P-450PB-B and NADPH-P-450 ...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1975
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1975.tb21039.x