Extended Data Figure 6. Human Pol II slows down at 5caC template in comparison with unmodified template in the content of HeLa nuclear extract.
The relative transcription elongation rate is normalized by the transcription elongation rate (kobs) from unmodified template. The relative rate from unmodified template and 5caC template are colored in black and gray, respectively. The error bars are standard deviations derived from three independent experiments.