library_construction_protocol: A single-cell suspension was made using trypsin. After which cells were filtered using a 40uM filter to remove cell clumps. Cells were stained with 7-AAD. Live cells were selected for and FACs-sorted onto 384-well plates containing primers with unique molecular identifiers, according to the SORT-Seq protocol.  Plates were spun down (1200 × g, 1 min, 4 °C) and ERCC spike‐in mix (1:50,000) was dispensed by a Nanodrop into each well. 150 nl of the Reverse Transcription (RT) mix was similarly dispensed into each well. Thermal cycling conditions were set at 4 °C 5 min; 25 °C 10 min; 42 °C 1 h; 70 °C 10 