GeneMedi’s lentivirus EF1a expression vector is inserted with a promoter for human elongation factor 1 alpha (EF1a) to drive gene overexpression. You can contact Genemedi for your unique reporter including GFP, zsgreen, RFP, mcherry or luciferase.The EF1a promoter is a strong protomer driven broad expression in most tissues.You can easily produce a recombinant lentivirus particle in HEK293T or HEK293FT cell line in high titer using GeneMedi’s lentivirus Vector System, including the lentivirus expression plasmids (overexpression, shRNA or Crispr-cas9-gRNA), the envelope protein VSV-G expressing plasmid pMD2G and the packaging plasmid pSPAX2.