HIV-budding

A Beginner’s Guide to Lentiviral Transduction

The use of viral delivery systems to transduce cells for gene and protein investigations has become prominent over the last 20 years. In particular, the use of lentiviral vectors permits stable expression of your gene of interest. This is all possible with a little bit of nucleic acid magic. Lentiviruses (a genus of retrovirus) express reverse…

virus purification

AAV Production Part II: Virus Purification

In Part I of AAV Production, I described how to produce crude (non-purified) AAV. In this article, I am going to tell you how to purify that crude prep. Virus purification is usually done by gradient ultracentrifugation. Two common methods involve gradients made from increasing concentrations of cesium chloride or iodixanol. A cesium chloride prep…