Isolation and partial characterization of a rifampicin induced rabbit liver microsomal cytochrome P-450

Abstract:

Rifampicin administration to New Zealand male rabbits increased the concentration of an LM3 form of cytochrome P-450 to up to 30 % of the microsomal P-450 concentration. This enzyme was purified to electrophoretic homogeneity with a yield of 8 % of the original total microsomal P-450 concentration. Isolated as a low spin hemoprotein in its substrate free oxidized form, it displays in its reduced CO-complexed form an absorption maximum at 449 nm. Immunological assays, as well as activity measurements, in particular its stereospecific progesterone hydroxylation in the 6β-position, show a relationship between LM3,Rif and LM3c (from untreated rabbits). © 1985.

Año de publicación:

1985

Keywords:

Fuente:

scopus