Levels of GFP expression (none, low, medium or high) in the different 5 k-mTert-GFP cellular clones derived from B6D2 and R1 ES cell lines. (A) 5 kmTert-GFP expression in 76 B6D2 clones, and (B) 5 kmTert-GFP expression in 85 R1 clones. GFP expression increased during 2–3 d after removal of LIF and subsequently diminished in parallel to EBs differentiation.
Pericuesta et al. Reproductive Biology and Endocrinology 2006 4:5 doi:10.1186/1477-7827-4-5