Journal of Pharmacy and Pharmacology 1991-Feb
Extraction and purification of curcain, a protease from the latex of Jatropha curcas Linn.
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A proteolytic enzyme, curcain, has been extracted from the latex of Jatropha curcas Linn. The enzyme was purified by chromatography on carboxymethyl cellulose and gel filtration on Sephadex G-200. The homogeneity of protein associated with curcain was established by non-denatured polyacrylamide gel electrophoresis using a discontinuous buffer system. The molecular weight of curcain was estimated by Sephadex G-100 gel filtration using a calibration curve of standard proteins to be around 22,000 daltons.