Generation of AAVS1 and CLYBL STRAIGHT-IN v2 acceptor human iPSC lines for integrating DNA payloads.

STRAIGHT-IN is a platform to precisely integrate DNA payloads into the genome of cells, including hiPSCs. Here, we generated two hiPSC acceptor lines each with one copy of an upgraded landing pad (LP). This improved design allows more efficient (∼100 %) and rapid (∼2-3 weeks) generation of genetically modified hiPSC lines containing the desired payloads. This new LP version was inserted into either the AAVS1 (LUMCi004-A-1) or CLYBL (LUMCi004-A-2) safe harbour loci in the hiPSC line, LUMC0099iCTRL04. The resulting lines can be used for the targeted integration of a wide range of transgenes, thereby making them suitable for numerous research applications.