RNA was harvested from cytoplasmic extracts prepared from E1 (Fhit silenced) and D1 induced (Fhit-expressing) cells that had been treated with DRB (5,6-dichloro-1-β-D-ribofuranosylbenzimidazole) for between 0 and 10 hours to block transcription. The decay of individual mRNA species was monitored using RT-qPCR. The RNA samples are remainders from the experiments published in [1]. These data are the numerical values exported from a Biorad CFX Connect qPCR machine. The data are normalized to internal spikes and relative values (vs T0) are calculated for both E1 and D1 cell lines