5'-GTP trisodium salt hydrate, an activator of the signal-transducing G proteins, serves as a precursor of mononucleotide units in the enzymatic biosynthesis of DNA and RNA.
8-Br-GTP, an analog of GTP, functions as both a competitive inhibitor of FtsZ polymerization and GTPase activity (with a K i value of 31.8 μM). Moreover, it is capable of facilitating nucleic acid modification.