88MHz 113Cd-n.m.r. studies of native rat liver metallothioneins

Well-resolved 113Cd-n.m.r. spectra of 113Cd-induced rat liver metallothioneins 1 and 2 are obtainable even at 88 MHz (9.4T). The line-widths of resonances are not dominated by chemical-shift-anisotropy relaxation. The increased spectral dispersion will significantly aid the study of the native (Cd- and Zn-containing) metallothioneins.