Silvio Aime, Simonetta Geninatti Crich, Mauro Botta, Giovanni Giovenzana, Giovanni Palmisano and Massimo Sisti
The ability of the paramagnetic macromolecular complex (GdDO3ASQ)30-Orn114 to enhance the water proton relaxation rate has been found to be a function of pH; this behaviour is related to the structural changes occurring in the polypeptide upon protonation of the side-chain NH2 groups.