IndraLab

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"The binding of the paramagnetic lanthanide ion ytterbium to the calcium binding protein carp parvalbumin results in a series of 1H NMR resonances which are shifted far outside the envelope of the 1H NMR spectrum of the diamagnetic form of the protein; bound Yb3+ also induces shifts in the 13C NMR spectrum of parvalbumin and in the 113Cd NMR spectrum of cadmium substituted parvalbumin."