Interaction of an aromatic dibromoisothiouronium derivative with the Ca(2+)-ATPase of skeletal muscle sarcoplasmic reticulum

Isothiouronium compounds [Hoving, S., Bar-Shimon, M., Tijmes, J. J., Goldshleger, R., Tal, D. M., and Karlish, S. J. (1995) J. Biol. Chem. 270, 29788-29793] act as high-affinity competitive antagonists for Na(+) and K(+) (Rb(+)) on the renal Na(+)/K(+)-ATPase where they favor the E1 conformation. We...

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