Effect of pressure treatment of actomyosin ATPases from flying fish and sardine muscles
1991
Ko, W.C. | Tanaka, M. | Nagashima, Y. | Taguchi, T. | Amano, K.
The effect of pressure treatment (1 atm approximately 5000 atm) on flying fish and sardine actomyosin ATPases was studied from the standpoint of interaction between myosin and actin. The activities of actomyosin Mg-ATPase markedly decreased and those of the EDTA-ATPases rapidly increased with prolonged pressure treatment at 3000 atm and 5000 atm. Changes in activities of F-actin plus pressure-treated myosin Ca-ATPases showed results similar to those of pressure-treated actomyosin Ca-ATPases, while myosin plus pressure-treated F-actin resulted in decreased Mg-ATPase activity and increased EDTA-ATPase activity.
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