Lentiviral Packaging Mix is a ready-to-use third generation HIV-based lentiviral packaging system in which the plasmids express the elements required for lentiviral production. To produce high quality lentiviral particles, all you need is a lentiviral expression vector containing your gene of interest. Lentiviral Packaging Mix contains the essential packaging vectors containing the viral structure proteins and the envelope vector to express the Vesicular Stomatitis Virus glycoprotein (VSVG). The lentiviral packaging mix is TAT-independent because it only supports lentiviral expression vector with a chimeric 5' LTR, in which the HIV promoter is replaced with CMV or RSV.