RT Journal Article SR Electronic T1 CRISPR/Cas9 screening using unique molecular identifiers JF bioRxiv FD Cold Spring Harbor Laboratory SP 114355 DO 10.1101/114355 A1 Bernhard Schmierer A1 Sandeep K. Botla A1 Jilin Zhang A1 Mikko Turunen A1 Teemu Kivioja A1 Jussi Taipale YR 2017 UL http://biorxiv.org/content/early/2017/03/06/114355.abstract AB Loss of function screening by CRISPR/Cas9 gene knockout with pooled, lentiviral guide libraries is a widely applicable method for systematic identification of genes contributing to diverse cellular phenotypes. Here, random sequence labels (RSLs) were incorporated into the guide-library. RSLs function as internal replicates for robust and reproducible hit calling, and act as unique molecular identifiers (UMIs) to allow massively parallel lineage tracing (MPLT) and true dropout screening.