Acknowledgement
We thank Boris Fehse and the NIH AIDS Research and Reference Reagent
Program for providing plasmids, Kay Ole Chmielewski for help with OT
analysis, Ilona Skatulla and Petra Scheliga-Marschner for technical
support, the Lighthouse Core Facility (Medical Center - University of
Freiburg) for flow cytometry support, and the Blood Donation Center
(Medical Center - University of Freiburg) for providing PBMCs.
This work was supported by a grant of the German Federal Ministry of
Education and Research (BMBF-01EO0803 to T.I.C. and T.Ca.) and a funded
research cooperation with Cellectis (ZVS20170614 to T.I.C. and T.Ca.).