Genome-Wide Analysis of the Cytochrome P450 Monooxygenases in the Lichenized Fungi of the Class .

Microorganisms

Department of Biochemistry and Microbiology, Faculty of Science, Agriculture and Engineering, University of Zululand, Vulindlela, KwaDlangezwa 3886, South Africa.

Published: October 2023

Lichens are unique organisms that exhibit a permanent symbiosis between fungi and algae or fungi and photosynthetic bacteria. Lichens have been found to produce biotechnologically valuable secondary metabolites. A handful of studies showed that tailoring enzymes such as cytochrome P450 monooxygenases (CYPs/P450s) play a key role in synthesizing these metabolites. Despite the critical role of P450s in the biosynthesis of secondary metabolites, the systematic analysis of P450s in lichens has yet to be reported. This study is aimed to address this research gap. A genome-wide analysis of P450s in five lichens from the fungal class revealed the presence of 434 P450s that are grouped into 178 P450 families and 345 P450 subfamilies. The study indicated that none of the P450 families bloomed, and 15 P450 families were conserved in all five . have more P450s and higher P450 family diversity compared to . A total of 73 P450s were found to be part of secondary metabolite gene clusters, indicating their potential involvement in the biosynthesis of secondary metabolites. Annotation of P450s revealed that CYP682BG1 and CYP682BG2 from and (physodic acid chemotype) are involved in the synthesis of grayanic acid and physodic acid, CYP65FQ2 from is involved in the synthesis of atranorin, and CYP6309A2 from is involved in the synthesis of usnic acid. This study serves as a reference for future annotation of P450s in lichens.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10608907PMC
http://dx.doi.org/10.3390/microorganisms11102590DOI Listing

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