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Báo cáo khoa học: Brain succinic semialdehyde dehydrogenase Reactions of sulfhydryl residues connected with catalytic activity

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:0

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Incubation of an NAD + -dependent succinic semialdehyde dehydrogenase from bovine brain with 4-dimethylamino-azobenzene-4-iodoacetamide (DABIA) resulted in a time-dependent loss of enzymatic activity. This inactivation followed pseudofirst-order kinetics with a second-order rate constant of 168M )1 Æmin )1 .The spectrumofDABIA-labeled enzyme showed a characteristic peak of the DABIA alkyl-ated sulfhydryl group chromophore at 436 nm, which was absent from the spectrum of the native enzyme.

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Nội dung Text: Báo cáo khoa học: Brain succinic semialdehyde dehydrogenase Reactions of sulfhydryl residues connected with catalytic activity

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