Table 2.

Increased mean TRF length in stably TEL1-transfected A-T cells

Cell line	Mean TRF length (bp)
5L13	2413, 2567
ATdeltaTEL	2617, 2933, 3224
AT-TEL1	4177, 4230, 4700, 5078, 5283, 6194 (sr7)

Parental 5L13 (A-T) cells were stably transfected with the TEL1rep (AT-TEL1) or deltaTELrep (ATdeltaTEL) expression vectors, and genomic DNA was analyzed for the TRF length representing the length of telomeric repeat tracts, as described in the Materials and Methods section. Each number represents the mean TRF length (bp) found in independent DNA samples of the respective cell line.