kinetic studies on inhibition by nh4-+ of the formation of 50s ribosome-ef-g-guanine nucleotide complex , indicated that the inhibition was due to reduction in the number of active 50s ribosomes which were capable of interacting with ef-g and gtp at higher concentrations of nh4-+ .
C0018328
guanine nucleotide
C0018353
gtp