603-Causal Regulatory Variants in Human Disease

Paper Talk · Mar 7, 2026 · 21m

This study uses high-throughput reporter assays to bridge the gap between genetic associations and the actual biological mechanisms of disease. Researchers employed massively parallel reporter assays (MPRA) to screen over 300,000 DNA sequences, identifying specific causal variants that regulate gene expression across various human tissues. Through saturation mutagenesis, they mapped how single-nucleotide changes disrupt or create transcription factor binding sites, revealing both simple and complex regulatory patterns. The findings include evidence of regulatory epistasis, where multiple…