highly significantp = 8.6 × 10 −6
The repression of the promoter activity caused by 5-fC between 6 and 24 h post-transfection was statistically highly significant ( p = 8.6 × 10 −6 , Student’s two tailed heteroscedastic t-test), whereas the effect of 2′-( R )-fluorinated 5-fC was not ( p = 0.62).