The Presence of Two Forms of Succinate Dehydrogenase in Sweet Potato Root Mitochondria1
- 1 April 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant and Cell Physiology
- Vol. 23 (3) , 515-523
- https://doi.org/10.1093/oxfordjournals.pcp.a076376
Abstract
Succinate dehydrogenase was partially purified from sweet potato root tissue by solubilization of the enzyme from the submitochondrial particles, ammonium sulfate fractionation, and DEAE-cellulose column chromatography. Sweet potato succinate dehydrogenase existed in two forms; these were separated by disc polyacrylamide gel electrophoresis or by hydroxyapatite column chromatography. There was a difference in the electric charge of the molecule, but not in the molecular weights of the two forms. No difference was detected between the two forms of succinate dehydrogenase with respect to their Km values for succinate, pH-optimums and subunit compositions. The two subunits that make up the enzyme have molecular weights of about 26,000 and 65,000.Keywords
This publication has 1 reference indexed in Scilit:
- [58] Preparation of succinate dehydrogenase and reconstitution of succinate oxidasePublished by Elsevier ,1967