• protein synthesis
  • the source of the guanosine found in RNA and also involved in many cellular processes, including microtubule assembly, protein synthesis , and cell signaling, due to the energy it releases upon removal of its terminal phosphate group (yielding GDP). (factbites.com)
  • concentrations
  • Four triphosphates, XTP, ITP, 7-methyl-GTP and 2′-O-methyl-GTP, gave 50% inhibition of both the poly(C)- and poly(U2,C)-dependent reactions at concentrations from 0.1 to 5 mM. (biochemj.org)