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Rao KH, Paul S, Natarajan K, Ghosh S. N-acetylglucosamine kinase, Hxk1is a multifaceted metabolic enzyme in model pathogenic yeast Candida albicans. Microbiol Res 2022; 263:127146. [DOI: 10.1016/j.micres.2022.127146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 10/16/2022]
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Flores CL, Ariño J, Gancedo C. The N-Acetylglucosamine Kinase from Yarrowia lipolytica Is a Moonlighting Protein. Int J Mol Sci 2021; 22:ijms222313109. [PMID: 34884915 PMCID: PMC8658026 DOI: 10.3390/ijms222313109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/21/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
In Yarrowia lipolytica, expression of the genes encoding the enzymes of the N-acetylglucosamine (NAGA) utilization pathway (NAG genes) becomes independent of the presence of NAGA in a Ylnag5 mutant lacking NAGA kinase. We addressed the question of whether the altered transcription was due to a lack of kinase activity or to a moonlighting role of this protein. Glucosamine-6-phosphate deaminase (Nag1) activity was measured as a reporter of NAG genes expression. The NGT1 gene encoding the NAGA transporter was deleted, creating a Ylnag5 ngt1 strain. In glucose cultures of this strain, Nag1 activity was similar to that of the Ylnag5 strain, ruling out the possibility that NAGA derived from cell wall turnover could trigger the derepression. Heterologous NAGA kinases were expressed in a Ylnag5 strain. Among them, the protein from Arabidopsis thaliana did not restore kinase activity but lowered Nag1 activity 4-fold with respect to a control. Expression in the Ylnag5 strain of YlNag5 variants F320S or D214V with low kinase activity caused a repression similar to that of the wild-type protein. Together, these results indicate that YlNag5 behaves as a moonlighting protein. An RNA-seq analysis revealed that the Ylnag5 mutation had a limited transcriptomic effect besides derepression of the NAG genes.
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Affiliation(s)
- Carmen-Lisset Flores
- Instituto de Investigaciones Biomédicas “Alberto Sols” CSIC-UAM, 28029 Madrid, Spain;
- Correspondence: (C.-L.F.); (J.A.)
| | - Joaquín Ariño
- Institut de Biotecnologia i Biomedicina & Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
- Correspondence: (C.-L.F.); (J.A.)
| | - Carlos Gancedo
- Instituto de Investigaciones Biomédicas “Alberto Sols” CSIC-UAM, 28029 Madrid, Spain;
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Konzock O, Norbeck J. Deletion of MHY1 abolishes hyphae formation in Yarrowia lipolytica without negative effects on stress tolerance. PLoS One 2020; 15:e0231161. [PMID: 32243483 PMCID: PMC7122783 DOI: 10.1371/journal.pone.0231161] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/17/2020] [Indexed: 12/11/2022] Open
Abstract
There is a need for development of sustainable production processes for production of fats/oils and lipid derived chemicals. The dimorphic oleaginous yeast Yarrowia lipolytica is a promising organism for conversion of biomass hydrolysate to lipids, but in many such processes hyphae formation will be problematic. We have therefore constructed and compared the performance of strains carrying deletions in several published gene targets suggested to abolish hyphae formation (MHY1, HOY1 and CLA4). The MHY1-deletion was the only of the tested strains which did not exhibit hyphae formation under any of the conditions tested. The MHY1-deletion also had a weak positive effect on lipid accumulation without affecting the total fatty acid composition, irrespective of the nitrogen source used. MHY1 has been suggested to constitute a functional homolog of the stress responsive transcription factors MSN2/4 in Saccharomyces cerevisiae, the deletion of which are highly stress sensitive. However, the deletion of MHY1 displayed only minor difference on survival of a range of acute or long term stress and starvation conditions. We conclude that the deletion of MHY1 in Y.lipolytica is a reliable way of abolishing hyphae formation with few detectable negative side effects regarding growth, stress tolerance and lipid accumulation and composition.
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Affiliation(s)
- Oliver Konzock
- Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Joakim Norbeck
- Division of Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
- * E-mail:
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Construction and characterization of a Saccharomyces cerevisiae strain able to grow on glucosamine as sole carbon and nitrogen source. Sci Rep 2018; 8:16949. [PMID: 30446667 PMCID: PMC6240059 DOI: 10.1038/s41598-018-35045-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/29/2018] [Indexed: 01/31/2023] Open
Abstract
Saccharomyces cerevisiae can transport and phosphorylate glucosamine, but cannot grow on this amino sugar. While an enzyme catalyzing the reaction from glucosamine-6-phosphate to fructose-6-phosphate, necessary for glucosamine catabolism, is present in yeasts using N-acetylglucosamine as carbon source, a sequence homology search suggested that such an enzyme is absent from Saccharomyces cerevisiae. The gene YlNAG1 encoding glucosamine-6-phosphate deaminase from Yarrowia lipolytica was introduced into S. cerevisiae and growth in glucosamine tested. The constructed strain grew in glucosamine as only carbon and nitrogen source. Growth on the amino sugar required respiration and caused an important ammonium excretion. Strains overexpressing YlNAG1 and one of the S. cerevisiae glucose transporters HXT1, 2, 3, 4, 6 or 7 grew in glucosamine. The amino sugar caused catabolite repression of different enzymes to a lower extent than that produced by glucose. The availability of a strain of S. cerevisiae able to grow on glucosamine opens new possibilities to investigate or manipulate pathways related with glucosamine metabolism in a well-studied organism.
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Inokuma K, Matsuda M, Sasaki D, Hasunuma T, Kondo A. Widespread effect of N-acetyl-D-glucosamine assimilation on the metabolisms of amino acids, purines, and pyrimidines in Scheffersomyces stipitis. Microb Cell Fact 2018; 17:153. [PMID: 30253773 PMCID: PMC6154936 DOI: 10.1186/s12934-018-0998-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/17/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Following cellulose, chitin is the most abundant renewable resource and is composed of the monomeric amino sugar N-acetyl-D-glucosamine (GlcNAc). Although many yeasts, including Saccharomyces cerevisiae, have lost their ability to utilize GlcNAc, some yeasts are able to use GlcNAc as a carbon source. However, our understanding of the effects of GlcNAc on the intracellular metabolism of nitrogen-containing compounds in these yeast species is limited. RESULTS In the present study, we quantitatively investigated the metabolic responses to GlcNAc in the GlcNAc-assimilating yeast Scheffersomyces stipitis (formerly known as Pichia stipitis) using capillary electrophoresis time-of-flight mass spectrometry (CE-TOFMS). The comprehensive analysis of the metabolites extracted from S. stipitis cells grown in glucose, xylose, or GlcNAc revealed increased intracellular accumulation of a wide range of nitrogen-containing compounds during GlcNAc assimilation in this yeast. The levels of aromatic, branched-chain, and sulfur-containing amino acids and adenine, guanine, and cytosine nucleotides were the highest in GlcNAc-grown cells. CONCLUSIONS The CE-TOFMS analysis revealed a positive effect for GlcNAc on the intracellular concentration of a wide range of nitrogen-containing compounds. The metabolomic data gathered in this study will be useful for designing effective genetic engineering strategies to develop novel S. stipitis strains for the production of valuable nitrogen-containing compounds from GlcNAc.
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Affiliation(s)
- Kentaro Inokuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Mami Matsuda
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Tomohisa Hasunuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan. .,Biomass Engineering Program, RIKEN, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan.
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Hapeta P, Rakicka M, Dulermo R, Gamboa-Meléndez H, Cruz-Le Coq AM, Nicaud JM, Lazar Z. Transforming sugars into fat - lipid biosynthesis using different sugars inYarrowia lipolytica. Yeast 2017; 34:293-304. [DOI: 10.1002/yea.3232] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/09/2017] [Accepted: 03/10/2017] [Indexed: 11/09/2022] Open
Affiliation(s)
- Piotr Hapeta
- Department of Biotechnology and Food Microbiology; Wroclaw University of Environmental and Life Sciences; Chelmonskiego 37 51-630 Wroclaw Poland
| | - Magdalena Rakicka
- Department of Biotechnology and Food Microbiology; Wroclaw University of Environmental and Life Sciences; Chelmonskiego 37 51-630 Wroclaw Poland
| | - Remi Dulermo
- Micalis Institute, INRA, AgroParisTech; Université Paris-Sud; F-78350 Jouy-en-Josas France
| | - Heber Gamboa-Meléndez
- Micalis Institute, INRA, AgroParisTech; Université Paris-Sud; F-78350 Jouy-en-Josas France
| | - Anne-Marie Cruz-Le Coq
- Micalis Institute, INRA, AgroParisTech; Université Paris-Sud; F-78350 Jouy-en-Josas France
| | - Jean-Marc Nicaud
- Micalis Institute, INRA, AgroParisTech; Université Paris-Sud; F-78350 Jouy-en-Josas France
| | - Zbigniew Lazar
- Department of Biotechnology and Food Microbiology; Wroclaw University of Environmental and Life Sciences; Chelmonskiego 37 51-630 Wroclaw Poland
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Correction: The Gene YALI0E20207g from Yarrowia lipolytica Encodes an N-Acetylglucosamine Kinase Implicated in the Regulated Expression of the Genes from the N-Acetylglucosamine Assimilatory Pathway. PLoS One 2015; 10:e0130113. [PMID: 26039240 PMCID: PMC4454533 DOI: 10.1371/journal.pone.0130113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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