Replacing a hypothetical i + 3 → i peptide H-bond in a disordered pentapeptide, that lacks any helicogenic Cα-tetrasubstituted residues, with a propyl linker and carbamylating the N-terminal nitrogen constrains it in the elusive 310-helical structure with high helicity and stability under varying conditions of temperature and pH, confirmed by NMR and CD analyses.
更换假想I + 3→1肽H-键无序五肽,即缺乏任何helicogenicÇ α -tetrasubstituted残基,具有丙基接头和
氨甲酰化的N末端氮约束它在难以捉摸3 10具有高螺旋结构通过NMR和CD分析证实了在温度和pH值变化的条件下的螺旋度和稳定性。