†The measured protonations by Kovalevsky et al. are different for the both α resp. β subunits whereas Hub et al. used symmetric protonation states. ‡indicates the neutral side chain. §doubly protonate
†The measured protonations by Kovalevsky et al. are different for the both α resp. β subunits whereas Hub et al. used symmetric protonation states.‡indicates the neutral side chain.§doubly protonated
