[Cytoplasmic fractions of liver differing in their antigenic properties and alcohol dehydrogenase activity]

Organ-specific antigenous properties and alcohol dehydrogenase activity (ADH) of human and rat cytoplasmic liver fractions precipitated and not precipitated by rivanol were compared. These fractions were shown to differ in organ-specific antigenous properties, with ADH activity being largely detectable in the non-precipitated fraction. A study was also made of the action of heating (45--60 degrees C), ether and chloroform on the non-precipitated fraction to show that all these factors exert an inconsistent effect on ADH activity and organ-specific antigenous properties of the fraction. It is suggested that proteins responsible for organ-specific antigenous properties and ADH activity of the non-precipitated fraction are not identical.