This comprehensive analysis from the ENCODE Consortium synthesizes data from over 100 noncoding CRISPR screens to establish definitive guidelines for studying the human genome's regulatory landscape. By evaluating more than 540,000 genomic perturbations, the researchers identified critical features of cis-regulatory elements (CREs) and determined that the most effective interventions occur near the summits of accessible chromatin. The study benchmarks various computational tools, recommending CASA for its precision in identifying functional elements while minimizing false positives. Furthermore, it uncovers a significant DNA strand bias in gene bodies, where CRISPR interference proves more potent when targeting the coding strand. Collectively, these findings provide a standardized framework, including predesigned guide RNAs and optimal sequencing depth requirements, to accelerate the functional characterization of noncoding genetic variation.

References:

• Yao D, Tycko J, Oh J W, et al. Multicenter integrated analysis of noncoding CRISPRi screens[J]. Nature methods, 2024, 21(4): 723-734.