Functional Reconstitution of a Fungal Natural Product Gene Cluster by Advanced Genome Editing.
(2017) Functional Reconstitution of a Fungal Natural Product Gene Cluster by Advanced Genome Editing. ACS Synth Biol 6(1), 62-68.
Filamentous fungi produce varieties of natural products even in a strain dependent manner. However, the genetic basis of chemical speciation between strains is still widely unknown. One example is trypacidin, a natural product of the opportunistic human pathogen Aspergillus fumigatus, which is not produced among different isolates. Combining computational analysis with targeted gene editing, we could link a single nucleotide insertion in the polyketide synthase of the trypacidin biosynthetic pathway and reconstitute its production in a nonproducing strain. Thus, we present a CRISPR/Cas9-based tool for advanced molecular genetic studies in filamentous fungi, exploiting selectable markers separated from the edited locus.
doi: 10.1021/acssynbio.6b00203 PMID: 27611015