1H NMR Study of the Solution Molecular and Electronic Structure of Escherichia coli Ferricytochrome b562: Evidence for S = 1/2 <=> S = 5/2 Spin Equilibrium for Intact His/Met Ligation - Wu, Jia-zhen; La Mar, Gerd N.; Yu, Liping P.; Lee, Kang-Bong; Walker, F. Ann; Chiu, Mark L.; Sligar, Stephen G. (Biological Magnetic Resonance Bank, 1999)