Figure 1From: A nucleotide-independent cyclic nitroxide label for monitoring segmental motions in nucleic acids A cyclic nitroxide label for nucleic acids. (A) A schematic of the labeling strategy. (B) Characterization of R5c labeling of the S c RNA by anion-exchange HPLC. The chromatographic trace for S c subjected to R5c labeling is shown in red, and that for the unlabeled S c is shown in black. (C) Characterization of R5c-labeled oligonucleotides by MALDI-TOF mass spectrometry.Back to article page