The medium-chain dehydrogenase/reductase (MDR) superfamily contains many members that are widely present in organisms and play important roles in growth, metabolism, and stress resistance but have not been studied in . In this study, bioinformatics and RNA sequencing methods were used to analyze the MDR superfamily of and its regulatory effect on fluconazole resistance. A phylogenetic tree was constructed using , , and and 73 were identified, all of which contained NADPH-binding motifs. contained 20 that were unevenly distributed across six chromosomes. () had similar 3D structures but varied greatly in their genetic evolution at different phylum levels. RNA-seq and gene expression analyses revealed that the fluconazole-resistant strain upregulates xylitol dehydrogenase, and downregulated alcohol dehydrogenase and sorbitol dehydrogenase concluded that the fluconazole-resistant strain was less selective toward carbon sources and had higher adaptability to the environment. Overall, our study contributes to our understanding of , providing a basis for further analysis of the genes associated with drug resistance in .
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http://dx.doi.org/10.3390/jof10020123 | DOI Listing |
J Basic Microbiol
June 2024
Bengbu Medical University Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical University, Bengbu, China.
NAD-dependent (2 R,3 R)‑2,3‑butanediol dehydrogenase (BDH) from Neisseria gonorrhoeae (NgBDH) is a representative member of the medium-chain dehydrogenase/reductase (MDR) superfamily. To date, little information is available on the substrate binding sites and catalytic residues of BDHs from this superfamily. In this work, according to molecular docking studies, we found that conserved residues Phe120 and Val161 form strong hydrophobic interactions with both (2 R,3 R)‑2,3‑butanediol (RR-BD) and meso-2,3‑butanediol (meso-BD) and that mutations of these residues to alanine or threonine impair substrate binding.
View Article and Find Full Text PDFJ Fungi (Basel)
February 2024
College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China.
Chem Biol Interact
February 2024
Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, SE-751 05 Uppsala, Sweden. Electronic address:
The medium-chain dehydrogenase/reductase (MDR) superfamily has more than 600,000 members in UniProt as of March 2023. As the family has been growing, the proportion of functionally characterized proteins has been falling behind. The aim of this project was to investigate the binding pockets of nine different MDR protein families based on sequence conservation patterns and three-dimensional structures of members within the respective families.
View Article and Find Full Text PDFJ Biosci Bioeng
February 2024
Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
Tyrosol (4-hydroxyphenylethanol) is a phenolic compound used in the pharmaceutical and chemical industries. However, current supply methods, such as extraction from natural resources and chemical synthesis, have disadvantages from the viewpoint of cost and environmental protection. Here, we developed a tyrosol-producing Escherichia coli cell factory from a high-tyrosine-producing strain by expressing selected tyrosine decarboxylase-, tyramine oxidase (TYO)-, and medium-chain dehydrogenase/reductase (YahK)-encoding genes.
View Article and Find Full Text PDFCommun Biol
November 2023
Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France.
Monoterpene indole alkaloids (MIAs) are a structurally diverse family of specialized metabolites mainly produced in Gentianales to cope with environmental challenges. Due to their pharmacological properties, the biosynthetic modalities of several MIA types have been elucidated but not that of the yohimbanes. Here, we combine metabolomics, proteomics, transcriptomics and genome sequencing of Rauvolfia tetraphylla with machine learning to discover the unexpected multiple actors of this natural product synthesis.
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