The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We have measured the current generated by light-activated proton release from bacteriorhodopsin into solution as a function of both pH and ionic strength. We find that proton release into solution decreases with increasing pH with an intrinsic pK a of 8.2 +/- 0.2. This pH dependence indicates that the deprotonation of a certain group inhibits or abolishes proton release. Under physiological...
The surface potential of the purple membrane was measured by a novel method by using an artificial bacteriorhodopsin whose chromophore was 13-CF 3 retinal instead of retinal. When attached to the apoprotein by a Schiff base, the intrinsic pK of the 13-CF 3 chromophore is around 7.3. The apparent p K of this pigment depends on the surface potential and thus on the electrolyte...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.