Threonine Aldolase and Allothreonine Aldolase in Rat Liver

1 The aldol breakdown of l-threonine and l-allothreonine in rat liver is catalyzed by systems localized in the soluble fraction of the homogenate. 2 Evidence in presented that two different enzymes, indicated as “threonine aldolase” and “allothreonine aldolase”, are involved in the breakdown of the two amino acids