on the other hand , guanine nucleotides not only decreased 125i- [ tyr0 ] rat cgrp binding to rat liver plasma membranes , but also accelerated the dissociation of label binding , and the removal of mg2+ from incubation medium attenuated this inhibitory action of gtp on 125i- [ tyr0 ] rat cgrp binding to membranes .
C0018328
guanine nucleotides
C0018353
gtp