...with a catalytically inactive Cas9 fused to the transcriptional repressor KRAB, which results in gene repression). These benchmark data sets (CRISPRn-RT112, CRISPRn-UMUC3, and CRISPRi-RT112) were constructed based on 46 genes that are essential for cell survival and 47 genes that are nonessential. We first
tested...