魚類および海産哺乳類のLDHおよびMDHアイソザイム・パターン

抄録

Crude extracts from skeletal muscle of thirty-nine species of fish showed a considerable species variation of L D H and M D H isozymes in the number and electrophoretic mobilities. It was a marked contrast to the similarity of the L D H isozyme patterns in marine mammals studied in the present study and in terrestrial mammals. However, closely related species showed similar isozyme patterns, or contained some of vary similar isozymes of L D H and M D H. The electrophoretic patterns of L D H and M D H contained in skeletal muscle of fish species were complex to be attributed to the polymers formed by random association of two subunits under the control of two genes. The genetic basis and physiological meaning for the isozymes are discussed on referring to the results of recent investigations.