N.m.r. and e.p.r. investigation of the interaction of copper(II) and glycyl-L-histidyl-L-lysine, a growth-modulating tripeptide from plasma.

Abstract

Interaction of Cu(II) and Gly-His-Lys, a growth-modulating tripeptide from plasma, was investigated by 13C- and 1H-n.m.r. and e.p.r. spectroscopy. The n.m.r. line-broadening was interpreted in terms of major and minor species formed as a function of pH. The results indicate that the n.m.r. line-broadening is due to the presence of minor species in rapid… (More)

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