Sulfate equilibrium exchange in human red cells has an activation volume of +150±20 cm3/mol over the pressure range 0.1 to 83 MPa (15 to 12000 lb/in2) at 30°C. This value greatly exceeds the expected contribution from sulfate binding to the anion exchanger. We suggest that the activation volume reflects conformational changes during the transport cycle.
All Science Journal Classification (ASJC) codes
- Cell Biology