RT Journal Article SR Electronic T1 Aspergillus fumigatus FhdA transcription factor is important for mitochondrial activity and codon usage regulation during the caspofungin paradoxical effect JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.05.21.492902 DO 10.1101/2022.05.21.492902 A1 Ana Cristina Colabardini A1 Norman Van Rhijn A1 Abigail L. LaBella A1 Clara Valero A1 Fang Wang A1 Lauren Dineen A1 Michael J. Bromley A1 Antonis Rokas A1 Gustavo H. Goldman YR 2022 UL http://biorxiv.org/content/early/2022/05/25/2022.05.21.492902.abstract AB Aspergillus fumigatus is the main etiological agent of aspergillosis. The antifungal drug caspofungin (CSP) can be used against A. fumigatus and CSP tolerance is observed. Here, we show that the transcription factor FhdA is important for mitochondrial activity and regulates genes transcribed by RNA polymerase II and III. FhdA influences the expression of tRNAs that are important for mitochondrial function upon CSP. Our results show a completely novel mechanism that is impacted by CSP.Competing Interest StatementThe authors have declared no competing interest.