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Overexpression of the RNA-binding protein NrdA affects global gene expression and secondary metabolism in species.
mSphere
January 2025
United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto, Kagoshima, Japan.
RNA-binding protein Nrd1 plays a role in RNA polymerase II transcription termination. In this study, we showed that the orthologous NrdA is important in global mRNA expression and secondary metabolism in species. We constructed an conditional expression strain using the Tet-On system in mut.
View Article and Find Full Text PDFFive New Indole Alkaloid Derivatives from Deep-Sea Fungus AF1.
Mar Drugs
December 2024
School of Pharmaceutical Sciences, GBRCE for Functional Molecular Engineering, Sun Yat-sen University, Guangzhou 510006, China.
One new gliotoxin derivative fumianthrogliotoxin (), one new indoquizoline alkaloid 3-(methyl propionate) indoquizoline (), and three novel indole alkaloids, anthroxyindole (), (±)-asperfumiindole A (), and (±)-asperfumiindole B (), together with 16 known compounds (-), were isolated from the culture of deep-sea derived fungus AF1. Their chemical structures and absolute configurations were determined through the analysis of NMR data in combination with electronic circular dichroism (ECD) calculations and other spectroscopic analyses. Compounds - and - were evaluated for anti-pulmonary fibrosis activity.
View Article and Find Full Text PDFRoles of the Gene in the Growth and Pathogenicity Regulation of .
J Fungi (Basel)
January 2025
Department of Pathogenobiology, Jilin University Mycology Research Center, Key Laboratory of Zoonosis Research, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China.
() is a filamentous fungus that causes invasive aspergillosis in immunocompromised individuals. Regulating fungal growth is crucial for preventing disease development. This study found that deleting the guanine nucleotide exchange factor gene led to slower growth and reduced the fungal burden and mortality of infected mice.
View Article and Find Full Text PDFSidF, a dual substrate N5-acetyl-N5-hydroxy-L-ornithine transacetylase involved in siderophore biosynthesis.
J Struct Biol X
June 2025
Bioorganic Chemistry and Bio-Crystallography Laboratory (B2Cl) Faculty of Agricultural, Environmental and Food Sciences, Libera Università di Bolzano, Piazza Università, 1, 39100 Bolzano, Italy.
Siderophore-mediated iron acquisition is essential for the virulence of , a fungus causing life-threatening aspergillosis. Drugs targeting the siderophore biosynthetic pathway could help improve disease management. The transacetylases SidF and SidL generate intermediates for different siderophores in .
View Article and Find Full Text PDFCharacterization of bioaerosol exposures in wastewater treatment plant workers and serum levels of lung and inflammatory markers.
J Hazard Mater
January 2025
The National Research Centre for the Working Environment, Lersø Parkallé 105, Copenhagen 2100, Denmark. Electronic address:
Wastewater treatment plant (WWTP) workers are exposed to bioaerosols containing bacteria, fungi, and endotoxin, potentially posing health risks to workers. This study quantified personal exposure levels to airborne bacteria and fungi, endotoxin, and dust among 44 workers during two seasons at four WWTPs. Associations between the exposure measurements and serum levels of biomarkers CRP, SAA, and CC16 were also assessed.
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