Static and Transient Hydrogen-Bonding Interactions in Recombinant Desulfatohirudin Studied by 1H Nuclear Magnetic Resonance Measurements of Amide Proton Exchange Rates and pH-Dependent Chemical Shifts - Haruyama, Hideyuki; Qian, Yan-qiu; Wuthrich, Kurt (Biological Magnetic Resonance Bank, 1995)