Representative cDNA from single cells across three C1 runs and Smart-Seq2 (on plates) were assessed using High Sensitivity DNA chips for Bioanalyzer (5067-4626 and 5067-4627; Agilent Technologies). Single cell cDNA from SMARTer3 (link),28 (link),29 (link),31 (link),32 (link) and Smart-Seq2 C1 IFCs and Smart-seq2 (on plates) was tagmented and pooled to make libraries using Illumina Nextera XT DNA sample preparation kit (Illumina; FC-131-1096) with 96 dual barcoded indices (Illumina; FC-131-1002). The library clean-up and sample pooling was performed using AMPure XP beads (Agencourt Biosciences; A63880). All protocols are described in the Fluidigm protocol (100-5950), Fluidigm Script Hub and Smart-seq2 protocol40 (link). The STRT-Seq libraries were made and sequenced at Karolinska Institutet as previously described9 (link),20 (link). The Single cell libraries from SMARTer and Smart-Seq2 C1 IFCs and Smart-seq2 (on plates) was sequenced across 1 lane of HiSeq V4 (Illumina) using 75bp/125bp paired-end sequencing.