| Comments |
P.303 2nd paragraph: "It may be of interest to compare the turnover rate for chloride transport in red cell membranes with the turnover rates of ion transport through modified bimolecular lipid membranes. If one assumes that each red cell membrane carries 10^6 transport sites, the turnover number per site is 5×10^4 ions/s at 38°C."
Also, the 50,000/s was most likely an underestimate because the exchanger was running at sub-saturating substrate concentrations (Olaf Andersen, private communication). |