(a), Catalog of 33 most common cancer-driver genes with oncogenic lesions (copy number alteration and mutation) across squamous cell carcinomas (SCC). (b), Lentiviral constructs for expression of ORFs and shRNAs. Barcode in the pLX EF1 vector and shRNA in the pLKO1 vector are used for sequencing-based identification and quantification of individual gene-targeting constructs. (c), Correlation between protein expression of the V5-tagged ORF library (V5/Actin) in 293 T cells and primary mouse keratinocytes (KRT). Control ORF (GFP) is in blue. (d), Ten most commonly mutated oncogenes in epithelial cancer. Statistics are based on TCGA data for carcinomas of the bladder, bowel, breast, head & neck, kidney, lung, ovary, pancreas, cervix, esophagus, stomach, liver, prostate, thymus, thyroid and uterus tissues. SCCs included SCC of the head & neck, lung and cervix. Each cancer type was equally weighted in the statistics.