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. 1976 Mar 1;153(3):561-6.
doi: 10.1042/bj1530561.

Identiy of brain alcohol dehydrogenase with liver alcohol dehydrogenase

R J Duncan, J E Kline, L Sokoloff

Identiy of brain alcohol dehydrogenase with liver alcohol dehydrogenase

R J Duncan et al. Biochem J. .

Abstract

A method for obtaining electrophoretically homogeneous rat liver alcohol dehydrogenase (EC 1.1.1.1) at a specific activity of 2-2.5 mumol/min per mg of protein is presented. Anti-sera prepared against the purified enzyme inhibit alcohol dehydrogenase by up to 75% and cause precipitation of virtually all the enzyme. The antisera were shown by immunoelectrophoresis of a partially purified liver homogenate to be specifically directed against alcohol dehydrogenase and were used to demonstrate that the alcohol dehydrogenases of rat brain and liver share common antigens. The total activity of alcohol dehydrogenase in rat brain homogenates is normally quite low, with as much as 10% of the total activity attributable to the activity in the blood contained within the brain; in cases of severe liver damage (induced experimentally with carbon tetrachloride) this contribution may rise to as much as 60%.

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