Targeted Genome Mining Reveals the Biosynthetic Gene Clusters of Natural Product CYP51 Inhibitors

Lanosterol 14 alpha-demethylase (CYP51) is an important target in the development of antifungal drugs. The fungalderived restricticin 1 and related molecules are the only examples of natural products that inhibit CYP51. Here, using colocalizations of genes encoding self-resistant CYP51 as the query, we identified and validated the biosynthetic gene cluster (BGC) of 1. Additional genome mining of related BGCs with CYP51 led to production of the related lanomycin 2. The pathways for both 1 and 2 were identified from fungi not known to produce these compounds, highlighting the promise of the self-resistance enzyme (SRE) guided approach to bioactive natural product discovery.

Automated summary

Researchers identified and validated the biosynthetic gene cluster of restricticin 1 using colocalizations of genes encoding self-resistant CYP51 as the query, and produced the related lanomycin 2 through genome mining of related BGCs with CYP51. The pathways for both compounds were identified from fungi not known to produce them, demonstrating the potential of the self-resistance enzyme (SRE) guided approach in bioactive natural product discovery.