PathoGD: an integrative genomics approach for CRISPR-based target design of rapid pathogen diagnostics

Abstract

The design of highly specific primers and guide RNAs (gRNA) for CRISPR-based diagnostics is often a laborious process. Several tools exist for gRNA design, but most are tailored for genome editing applications. Here, we present PathoGD, an end-to-end bioinformatic pipeline comprising pangenome and k-mer modules for rapid and high-throughput design of primers and gRNAs for CRISPR-Cas12a-based pathogen detection. We validated and demonstrated high specificity of a subset of PathoGD-designed primers and gRNAs for the detection of Neisseria gonorrhoeae and Streptococcus pyogenes. PathoGD will serve as an important resource for designing CRISPR-based diagnostic assays for current and emerging pathogens.