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. Author manuscript; available in PMC: 2009 Dec 21.
Published in final edited form as: J Mol Cell Cardiol. 2007 Jul 14;43(4):504–516. doi: 10.1016/j.yjmcc.2007.07.001

Fig 2.

Fig 2

Flow cytometry analysis of GFP-expression in undifferentiated hES-GFP cells (red dot-plot and blue histogram in the left panel) and day 12 EB-derived cells (right panel). The GFP-negative cell population in the undifferentiated cells likely represents the mitotically inactivated human feeder fibroblasts that are used to co-culture the hES cells and do not carry the GFP transgene. Note that in day 12 EB-derived cells a range of GFP intensity is observed suggesting differing levels of transgenic protein expression.