We are developing a model describing the interrelation between the pH
difference and transmembrane potential across the mitochondrial inner
membrane, and wish to fit its parameters to experimental data. The frequently
assumed linearity between these variables turns out to be a good first
approximation, but we want to find a better approximation.
Until now, we have found two papers where Delta pH and Delta Psi were
measured separately, in dependence on some parameter such as inhibition of
the respiratory chain (Duszynski et al., BBA 1984; Ouhabi et al., BBA 1991).
Is anybody aware of other papers giving such data, perhaps concerning other
membranes involving an electrogenic proton transport (lysosome membranes,
bacteriorhodopsin liposomes, plant vacuolar membranes, chromaffine granules
etc.)?
Thanks a lot in advance.
Stefan Schuster, Berlin
e-mail: Stefan=Schuster at rz.hu-berlin.de
