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Biochemistry. 1986 Jul 15;25(14):4119-25.

Purification and characterization of three distinct glutathione transferases from mouse liver.


Three distinct glutathione transferases in the liver cytosol fraction of male NMRI mice have been purified by affinity chromatography and fast protein liquid chromatofocusing. These enzymes account for approximately 95% of the activity detectable with 1-chloro-2,4-dinitrobenzene as electrophilic substrate. Differences between the three forms are manifested in isoelectric points, apparent subunit molecular mass values, amino acid compositions, N-terminal structures, substrate specificities, and sensitivities to inhibitors, as well as in reactions with specific antibodies raised against glutathione transferases from rat and human tissues. The results indicate strongly that the three mouse enzymes are products of different genes. A comparison of the mouse glutathione transferases with rat and human enzymes revealed similarities between the transferases from different species. Mouse glutathione transferases have been named on the basis of their respective subunit compositions.

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