1,4‐Tzs have been successfully employed in the metabolic stabilization of different radiolabeled peptides that are promising candidates for application in nuclear medicine (e.g., bombesin, neurotensin, minigastrin), leading to triazolo‐peptidomimetics with enhanced tumor uptake in mice bearing tumor xenografts in comparison to the respective all‐amide‐bond reference peptides.10, 11, 12. The gene discussed is GRP; the disease is neoplasm.