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Inorganic polyphosphate in methylotrophic yeasts

  • Applied microbial and cell physiology
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Abstract

Inorganic polyphosphate (polyP) is a significant regulatory and metabolic compound in yeast cells. We compared polyP content and localization, polyphosphatase activities, and transcriptional profile of polyP-related genes in industrially important methylotrophic yeasts, Hansenula polymorpha and Pichia pastoris. The increased need for phosphate, the decrease of long-chain polyP level, the accumulation of short-chain polyP, and enhanced endopolyphosphatase activity in the crude membrane fraction were observed in methanol-grown cells compared with glucose-grown cells of both species. Transcriptome analysis revealed notable differences in the expression patterns of key genes encoding proteins related to polyP metabolism. In methanol-grown cells, the genes encoding endopolyphosphatases and phosphate transporters were upregulated. The changes in polyP metabolism are probably related to the peculiarities of bioenergetics of methanol-grown cells.

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Acknowledgements

The authors thank Elena Makeeva for her help with preparing the manuscript.

Funding

This study was funded by the Russian Foundation for Basic Research (Grant No. 17-04-00822).

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Correspondence to Tatiana Kulakovskaya.

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The authors declare that they have no conflict of interest.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Andreeva, N., Ryazanova, L., Zvonarev, A. et al. Inorganic polyphosphate in methylotrophic yeasts. Appl Microbiol Biotechnol 102, 5235–5244 (2018). https://doi.org/10.1007/s00253-018-9008-3

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  • DOI: https://doi.org/10.1007/s00253-018-9008-3

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