抄録
Multiplicity and properties of proteinases from the latex of Ficus carica var. HORAISHI, which grows in Japan, were examined. Four proteinases were found in the latex by polyacrylamide gel electrophoresis. They were purified to homogeniety from the latex and Ficins A and B were crystallized. The molecular weight of each of these enzymes was 24000 to 26000. They showed similarity in optimum pH, pH stability, and hydrolysis ratio on casein substrate, but differed in affinity to carboxy methyl cellulose, mobility in polyacrylamide gel, optimum temperature, heat stability, and specific activity on various substrates. These results suggest that four or more proteinases exist independently in the latex of Ficus carica var. HORAISHI.
