{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:27:20Z","timestamp":1792787240891,"version":"4.5.0"},"reference-count":44,"publisher":"American Society for Microbiology","issue":"3","license":[{"start":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T00:00:00Z","timestamp":1773187200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T00:00:00Z","timestamp":1773187200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100000060","name":"National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["RO1 A1058145, RO1 AI131620"],"award-info":[{"award-number":["RO1 A1058145, RO1 AI131620"]}],"id":[{"id":"10.13039\/100000060","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Marion Merrell Dow Endowed Professorship"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["mBio"],"published-print":{"date-parts":[[2026,3,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>Fluconazole (FLC)-resistant Candidozyma auris isolates have reduced drug accumulation compared to azole-susceptible isolates. Of 119 C. auris isolates, 83 out of 87 resistant isolates (~95%) had extremely low fluconazole uptake, whereas 30 out of 32 susceptible isolates (~93%) had high fluconazole uptake. In search of a genetic explanation for this phenomenon, we compared metadata for TAC1B and CDR1 single-nucleotide polymorphisms (SNPs) and found overlap with many but not all isolates that are FLC resistant. We found that CDR1 mutations are common in resistant isolates from Clade 1, and TAC1B mutations are commonly found in resistant isolates from clades 1 and 3. There is clearly an association between FLC resistance and certain CDR1 and TAC1B polymorphisms, but mutations in these genes do not account for all mechanisms of resistance in this species and do not account for the difference in FLC accumulation. However, when ERG11 SNPs were included in the analysis, there is a clear correlation between low FLC accumulation and isolates that have one of five ERG11 variants and also high FLC accumulation and isolates that have non-variant ERG11 sequences. The ERG11 mutations F126L, K143R, V125\/F126L, Y132F, or Y501H are correlated to fluconazole resistance and reduced fluconazole accumulation. This is a unique characteristic of C. auris, suggesting mutations in ERG11 can cause changes in the ergosterol biosynthesis pathway and membrane composition, organization, and permeability.<\/jats:p>\n                    <jats:sec>\n                      <jats:title>IMPORTANCE<\/jats:title>\n                      <jats:p>Candidozyma auris is a global human health threat because of its near-universal resistance to the antifungal fluconazole as well as a predisposition to multidrug resistance among clinical isolates. The underlying mechanisms of antifungal drug resistance in this species are still largely under investigation, and these efforts are significantly supported by research that increase our understanding of unique aspects of C. auris biology. We have identified a correlation between C. auris isolates\u2019 susceptibility to fluconazole and intracellular drug accumulation in which drug-resistant isolates have significantly reduced intracellular fluconazole compared to isolates that are susceptible to fluconazole. We have proposed a mechanism for this phenomenon and demonstrated important roles for mutations in ERG11, TAC1B, and CDR1 gene sequences for drug resistance.<\/jats:p>\n                    <\/jats:sec>\n                  <\/jats:sec>","DOI":"10.1128\/mbio.03957-25","type":"journal-article","created":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T14:00:15Z","timestamp":1770386415000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":5,"title":["Mutations in ERG11, TAC1B, and CDR1 reduce fluconazole accumulation in drug-resistant Candidozyma auris isolates"],"prefix":"10.1128","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7328-4057","authenticated-orcid":false,"given":"Brooke D.","family":"Esquivel","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02ymw8z06","id-type":"ROR","asserted-by":"publisher"}],"name":"Division of Biological and Biomedical Systems, School of Science and Engineering, University of Missouri-Kansas City","place":["Kansas City, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5577-4498","authenticated-orcid":false,"given":"Amanda","family":"Santos","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00qzjvm58","id-type":"ROR","asserted-by":"publisher"}],"name":"Mycotic Diseases Branch, NCEZID, Centers for Disease Control and Prevention","place":["Atlanta, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9317-0935","authenticated-orcid":true,"given":"Jeffrey M.","family":"Rybak","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02r3e0967","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital","place":["Memphis, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Darian J.","family":"Santana","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02r3e0967","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital","place":["Memphis, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4401-0679","authenticated-orcid":true,"given":"P. 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