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논문 기본 정보

자료유형
학술저널
저자정보
Perez-de los Santos Francisco J. (Unidad de Genomica Avanzada Laboratorio Nacional de Genomica para la Biodiversidad (Langebio) CINVE) Garcia-Ortega Luis Fernando (Unidad de Genomica Avanzada Laboratorio Nacional de Genomica para la Biodiversidad (Langebio) CINVE) Robledo-Marquez Karina (Division de Biologia Molecular Instituto Potosino de Investigacion Cientifica y Tecnologica A. C. () Guzman-Moreno Jesus (Division de Biologia Molecular Instituto Potosino de Investigacion Cientifica y Tecnologica A. C. () Riego-Ruiz Lina (Division de Biologia Molecular Instituto Potosino de Investigacion Cientifica y Tecnologica A. C. ()
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제31권 제5호
발행연도
2021.1
수록면
659 - 666 (8page)

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After Candida albicans, Candida glabrata is one of the most common fungal species associated with candidemia in nosocomial infections. Rapid acquisition of nutrients from the host is important for the survival of pathogens which possess the metabolic flexibility to assimilate different carbon and nitrogen compounds. In Saccharomyces cerevisiae, nitrogen assimilation is controlled through a mechanism known as Nitrogen Catabolite Repression (NCR). NCR is coordinated by the action of four GATA factors; two positive regulators, Gat1 and Gln3, and two negative regulators, Gzf3 and Dal80. A mechanism in C. glabrata similar to NCR in S. cerevisiae has not been broadly studied. We previously showed that in C. glabrata, Gln3, and not Gat1, has a major role in nitrogen assimilation as opposed to what has been observed in S. cerevisiae in which both factors regulate NCR-sensitive genes. Here, we expand the knowledge about the role of Gln3 from C. glabrata through the transcriptional analysis of BG14 and gln3Δ strains. Approximately, 53.5% of the detected genes were differentially expressed (DEG). From these DEG, amino acid metabolism and ABC transporters were two of the most enriched KEGG categories in our analysis (Up-DEG and Down-DEG, respectively). Furthermore, a positive role of Gln3 in AAA assimilation was described, as was its role in the transcriptional regulation of ARO8. Finally, an unexpected negative role of Gln3 in the gene regulation of ABC transporters CDR1 and CDR2 and its associated transcriptional regulator PDR1 was found. This observation was confirmed by a decreased susceptibility of the gln3Δ strain to fluconazole.

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