STUDIES ON AN IN VITRO CATALASE INHIBITOR FROM SILKWORM BLOOD

I. OBSERVATIONS ON THE INHIBITORY ACTION

抄録

1. Catalase activity of blood plasma of silkworm has been studied. Blood plasma contains a catalase inhibitor, and the major part of silkworm blood catalase exists in an inactive form.
2. The inhibitor is heat-stable and dialyzable, and suppresses catalatic activity in vitro.
3. The inactive complex of catalase and inhibitor dissociates on simple dilution, and the dissociation is favoured by alkaline medium and higher temperatures.
The author wishes to express his thanks to Dr. Y. Tazima, National Institute of Genetics, Mishima, for his kind supply of silkworms during the course of this study.