To test this approach, we inserted a green fluorescent protein (GFP) nanobody (GFPnb) into the VP1 protein of AAV-DJ inside the capsid and replaced the AAV payload plasmid with a GFP expression ...

20 µL of this mixture was transferred to a 0.5 ml protein LoBind tube and mixed with 640 pmol of SPYtag-GFP nanobody and incubated at 4 °C for 10 h. The beads were washed twice and resuspended with 25 ...