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Preparation of radiolabeled GM2 and GA2 gangliosides.

A Novak, J A Lowden, Y L Gravel and 1 more

Journal of Lipid Research · 1979

doi:10.1016/s0022-2275(20)40593-0 (opens in a new tab)

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Abstract

GM2 and GA2 gangliosides from the brain of a patient who died of Sandhoff's disease were purified by solvent partition, silicic acid and silica gel column chromatography, and silica gel preparative thin-layer chromatography. They were tritiated in the terminal N-acetylgalactosamine residue using galactose oxidase and sodium [3H]borohydride with the inclusion of catalase and peroxidase into the oxidation reaction. The specific activities were 4.62 X 10(8) dpm/mumol of GM2 ganglioside and 5.54 X 40(7) dpm/mumol of GA2 ganglioside. The addition of catalase and peroxidase to the tritiation procedure is recommended.

Abstract licence: CC BY-NC-ND

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