Diamide inhibited (Ca++ + Mg++) and (Mg++) dependent ATPase in erythrocyte membranes: activity at different temperatures
- PMID: 159703
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Diamide inhibited (Ca++ + Mg++) and (Mg++) dependent ATPase in erythrocyte membranes: activity at different temperatures
Boll Soc Ital Biol Sper.
.
Abstract
After inhibition of the monovalent cation dependent ATPase, a (Ca++ + Mg++) and a (Mg++) dependent ATPase activity can be detected. The inhibition due to diamide on the (Mg++) ATPase, assayed in the 12.5 degrees C - 30 degrees C temperature range, is almost complete. On the contrary the diamide induced inhibition of (Ca++ + Mg++) ATPase, in the same temperature range, is not complete and the residual activity increases with temperature. The reported data indicate that the ATPase activity induced by calcium is much less diamide-sensitive and -SH-dependent than that elicited by Mg++ alone.
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