PMID: 1296208Jan 1, 1992Paper

Immunotitration of the catalase in the blood of Japanese subjects and mice suffering from acatalasemia and hypocatalasemia

Physiological Chemistry and Physics and Medical NMR
M Ogata, Y Fujii


Catalase in hemolysates of normal, heterozygous hypocatalasemic and acatalasemic Japanese was immunotitrated with an anti-human blood catalase rabbit serum. Equivalence points were calculated from the regression lines between catalase activity added and catalase activity remaining in the supernatant. Catalase activities at the equivalence points of Japanese normal, hypocatalasemia and acatalasemia were similar. The results indicate that the specific activities of catalase in the normal and of the variant bloods are identical. Catalase in hemolysates of normal and variant mice was immunotitrated with an anti-mouse liver catalase rabbit serum. In contrast to Japanese acatalasemic subject, the equivalence points of catalase in heterozygous hypocatalasemic, homozygous hypocatalasemic, acatalasemic and normal hemolysates were different, and the ratios of specific activity in these variant mice to that in normal were 0.72, 0.46 and 0.21, respectively. The differences in catalase activities at equivalence points were also supported by the statistical analysis on parameters of regression lines of catalase activities remaining in the supernatant on catalase activities added in the immunotitration. These findings suggest that the molecul...Continue Reading

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