The average puromycin resistant (puro^r) colonies and repair pathway contribution for AARP HEK293FRT cells.

a) S4 Fig includes the sequences of the specific Alu elements in each construct.

b) Colony numbers per 10⁶ cells are reported with standard error.

c) Alu/Alu recombination percentage was calculated as the number of repair junctions containing an intact Alu as a proportion of total number of sequenced repair junctions.

d) NHEJ percentage was calculated as the number of repair junctions containing a non-intact Alu as a proportion of total number of sequenced repair junctions.

e) Data could not be calculated because PCR and sequence analysis of repair products was not performed for 0.7%-AARP HEK293FRT cells.

f) The average of independent experiments using two scrambled-sequence AARP HEK293FRT cell lines (Scr1-AARP and Scr2-AARP; S5 Fig).

The average puromycin resistant (puro^r) colonies and repair pathway contribution for AARP HEK293FRT cells.