Integration of CRISPR/Cas12a and Cas13a in one pot for ratiometric calibration of single-nucleotide variations

Abstract

Accurate detection of single-nucleotide variations (SNVs) plays a pivotal role in medical diagnosis. Herein, by integrating Cas12a and Cas13a to simultaneously detect wild-type and mutated sites on a single RNA strand, we developed an innovative one-pot SNV analysis method, namely iCasdrop, which is capable of reducing non-specific signals induced by the wild type sequence and achieving ratiometric calibration of SNVs.