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Biochemical Studies on Ricin I. Purification of Ricin

By Masatsune Ishiguro, Takao Takahashi, Gunki Funatsu, Katsuya Hayashi and Masaru Funatsu

Abstract

Since Osbo rne et al.{Y) isolated a toxic protein, ricin, from castor bean, many studies of this protein have been made. Partially purified ricin preparation or a crystalline ricin preparation, which was obtained by K a b a t et al. (2), K u n i t z and M c D o n a l d (3), and M o u 16 (4) separately, had high hemag-glutinating or proteolytic activity in addition to toxicity, and these activities were thought to be intrinsic properties of ricin itself. As in the case of Cl. botuliruim (5) or Habu snake venom (6), however, trace amounts of impurities which have physiological activity can often bring about symptoms different from those brought about by the toxin

Year: 1963
OAI identifier: oai:CiteSeerX.psu:10.1.1.1024.4512
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