Abstract
Fungal ribosomally synthesized and post-translationally modified peptides (RiPPs) are a vital class of natural products known for their biological activities including anticancer, antitubulin, antinematode, and immunosuppressant properties. These bioactive fungal RiPPs play key roles in chemical ecology and have a significant therapeutic potential. Their structural diversity, which arises from intricate post-translational modifications of precursor peptides, is particularly remarkable. Despite their biological and ecological importance, the discovery of fungal RiPPs has been historically challenging and only a limited number have been identified. To date, known fungal RiPPs are primarily grouped into three groups: cycloamanides and borosins from basidiomycetes and dikaritins from ascomycetes. Recent advancements in bioinformatics have revealed the vast untapped potential of fungi to produce RiPPs, offering new opportunities for their discovery. This review highlights recent progress in fungal RiPP biosynthesis and genome-guided discovery strategies. We propose that combining the knowledge of fungal RiPP biosynthetic pathways with advanced gene-editing technologies and bioinformatic tools will significantly accelerate the discovery of novel bioactive fungal RiPPs.
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