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 min. Each plate their library was pooled together and the cDNA was purified using AmpureXP beads. Overnight In vitro transcription was carried out at 16 °C, with the lid set at 70 °C. An exonuclease digestion step was performed thereafter for 20 min at 37 °C, followed by fragmentation of the RNA samples. After a beads cleanup, the samples were subjected to library RT and amplification to tag the RNA molecules with specific and unique sample indexes, followed by a final beads cleanup (1:0.8, reaction mix: beads), and the sample cDNA libraries were eluted with DNAse free water. Libraries were quantified using the KAPPA quantification kit following manufacturers protocol after which the plates were sequenced on the Illumina NextSeq 500 for 25 million reads per plate.