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Plant Physiology 81:717-722 (1986) © 1986 American Society of Plant Biologists Chorismate Mutase Isoenzymes from Selected Plants and Their Immunological Comparison with the Isoenzymes from Sorghum bicolor1Department of Biochemistry and Biophysics, University of California, Davis, California 95616
The isoenzyme pattern of chorismate mutase (EC 5.4.99.5) was examined by diethylaminoethyl-cellulose chromatography in a wide variety of plants. All plants contained a regulated form of chorismate mutase (CM-1), and most contained an additional, unregulated form (CM-2). The regulatory properties of CM-1 differed significantly between plants. Antisera prepared against CM-1 and CM-2 from Sorghum bicolor were used to test immunological cross reaction of chorismate mutases from other plants. There was a high degree of similarity between chorismate mutase isoenzymes from Sorghum bicolor and Zea mays and some with Hordeum vulgare, but all other species studied were antigenically distinct from sorghum. No homology between the structure of CM-1 and CM-2 was detected within any species.
1 Supported in part by United States Public Health Service grant GM-05301-28. This article has been cited by other articles:
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