Serological Characterization of the Glycolate-oxidizing Enzymes from Tobacco, Euglena gracilis, and a Yellow Mutant of Chlorella vulgaris

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Abstract
An antiserum to tobacco glycolate oxidase has been prepared by injection of the purified enzyme into rabbits. Double gel diffusion tests between the antiserum and purified antigen and also with a crude tobacco preparation gave a single immunoprecipitation band. Crude extracts of Euglena gracilis Z Klebs, containing glycolate dehydrogenase, and of Chlorella vulgaris 211-11h/20, containing glycolate oxidase, also formed single bands with the tobacco antiserum. The algal bands were identical and showed partial identity with the tobacco band. The antiserum inhibited the glycolate oxidase activities of the tobacco and Chlorella extracts but did not affect Euglena glycolate dehydrogenase activity.