Figure 5

Splicing as a requirement for intron V-mediated enhancement of hTPO transcription.
RT-PCR was performed to compare hTPO mRNA expression in HC-11 cells transfected with expression vector pTPOΔGD and pTPOGD, respectively. Intron V with a mutated 5′ splice site was not removed from hTPO pre-mRNA as indicated by the position of RT-PCR product.