Genetic studies of murine catalase: Regulation of multiple molecular forms of kidney catalase

Biochemical Genetics - Tập 14 - Trang 59-66 - 1976
H. A. Hoffman1, C. K. Grieshaber1
1Laboratory of Biology, Division of Cancer Biology and Diagnosis, National Cancer Institute, Bethesda

Tóm tắt

Starch gel electrophoresis of kidney catalase in inbred strains C3H and C57BL/6, their F1 hybrid, and first and second backcross generations demonstrated that single-component (type A) v. multiple-component (type B) electrophoretic patterns are controlled by a single locus. The type A electrophoretic pattern is dominant. Twenty-five inbred strains of mice were classified according to their kidney catalase electrophoretic pattern. The data indicate that the segregating genetic factor determines a specific substance in the type A kidney which affects the electrophoretic mobility of catalase. A comparison of the F1 hybrid enzyme with a 1:1 mixture of C3H and C57BL/6 enzyme showed that the alteration of electrophoretic mobility is the result of posttranslational modification of the catalase molecule. An association of kidney catalase electrophoretic pattern and the H-2 k haplotype indicates that the locus controlling the electrophoretic pattern is most likely located on chromosome 17 in close proximity to the H-2 complex.

Tài liệu tham khảo

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