
Expansion of the CGG repeat in the FMR1 mRNA does not affect the fraction of message that possesses a 5′ cap. Capped and uncapped mRNAs were fractionated by affinity chromatography (see Materials and Methods); capped and uncapped mRNAs were quantified by TaqMan RT-PCR, using either GUS (A) or GAPDH (B) mRNAs as reference genes.










