The rise in fungal drug resistance has exacerbated the treatment of invasive fungal infections, most commonly caused by Candida. This research describes the synthesis of extended "long-arm" azole antifungals that were evaluated against wild-type and resistant fungal species. Biphenyl derivative 22 was the most effective derivative, displaying potent inhibitory activity against Saccharomyces, Candida, and Cryptococcus CYP51 enzymes, including in resistant strains, in comparison with posaconazole. The X-ray crystal structure of S-22 complexed with S. cerevisiae CYP51 showed a hydrogen bond between the oxygen of the trifluoromethoxy group of S-22 and the His381 side chain of S. cerevisiae CYP51, which is postulated to contribute significantly to its binding, and stabilization in the presence of the S. cerevisiae CYP51 Y140F/H, C. parapsilosis and C. auris CYP51 Y132F mutations and the C. auris K143R mutation. Computational studies and IC50 evaluation of compound 22 vs C. albicans wild-type, Y132F, and Y132H/K143 mutant strains supported MIC observations.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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