CPLefebvre (cplefebvre at aol.com) wrote: : I have done a lot of CaPO4 transfections with HeLa cells and I will just : say: forget it and try polyethyleneimine. This is at least 100 fold more : efficient (you wont just believe it ...). : If you need more info, email to p.lefebvre at lille.inserm.fr : Good luck