Table 1. Quantification of hTERT mRNA variants by competitive RT-PCR.

Exons	Construct	Molecules per cell
1–2	INS-i1	2.5±2.2
	Wildtype	10±3.8
1–3	Wildtype	17±6.0
	DEL-e2	19±6.4
2–4	INS-i2[1–349]	4.5±3.7
	Wildtype	18.5±15.6
3–5	Wildtype	22±7.9
4–10	Wildtype	4.5±1.3
	Alpha	1.25±1.1
	Beta	5.5±1.5
	Alpha-Beta	0.65±0.5
9–14	INS-i13	1±0.3
	Wildtype	5±1.3
13–16	INS-i14	2±0.5
	INS-i14[619–781]*	4±1.0
	INS-i14[622–705]*	3±1.6
	Wildtype	5.5±1.5

^*Residue numbers inserted from intron 14 are indicated in brackets, with the first nucleotide of intron 14 denoted as “1”.