One more question: It seems you know about protein expression. I transfected my cells using a plasmid DNA that expresses GFP, but most of the time (always), I get overexpressed GFP. Any ideas on how to avoid this?
it might be yeast infection because it has prefect round shape. also your cells are not happy which is might confirm my hypothesis earlier. I suggest to use another cell line or borrow cell line from another lab, this will let you the what is going on in fact