Abstract
Chemogenomic profiling is a powerful and unbiased approach to elucidate pharmacological targets and the mechanism of bioactive compounds. It is based on identifying cellular hypersensitivity and resistance caused by individual gene modulations with genome-wide coverage. Due to the requirement of bar-coded, genome-wide deletion collections, high-resolution experiments of this nature have historically been limited to fungal systems. Pooled RNAi reagents have enabled similar attempts in mammalian cells but efforts have been hampered by significant off-target effects and experimental noise. The CRISPR/Cas9 system for the first time enables precise DNA editing at defined loci in a genome-wide fashion. Here we present the detailed protocol that leverages the CRISPR/Cas9 system for chemogenomic profiling and target identification of diverse chemical probes.
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