From: HTLV-1 CTCF-binding site is dispensable for in vitro immortalization and persistent infection in vivo
# of producer cells
Number of wells with immortalized cells (48 wells/assay)
HTLV-1
HTLV-1∆CTCF
HTLV-1p12Stop
1
2 (4%)
0 (0%)
10
9 (19%)
8 (17%)
6 (13%)
100
20 (42%)
14 (29%)
1000
31 (65%)
27 (56%)
28 (58%)