Sangam: A Confluence of Knowledge Streams

Analysing and meta-analysing time-series data of microbial growth and gene expression from plate readers

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dc.contributor BBSRC - Biotechnology and Biological Sciences Research Council
dc.contributor Wellcome Trust
dc.contributor Swain, Peter
dc.creator Montano-Gutierrez, Luis Fernando
dc.creator Manzanaro Moreno, Nahuel
dc.creator Swain, Peter
dc.date 2021-12-16T12:31:58Z
dc.date 2021-12-16T12:31:58Z
dc.identifier Montano-Gutierrez, Luis Fernando; Manzanaro Moreno, Nahuel; Swain, Peter. (2021). Analysing and meta-analysing time-series data of microbial growth and gene expression from plate readers, [dataset]. University of Edinburgh. School of Biological Sciences. https://doi.org/10.7488/ds/3263.
dc.identifier https://hdl.handle.net/10283/4192
dc.identifier https://doi.org/10.7488/ds/3263
dc.description Responding to change is a fundamental property of life, making time-series data invaluable in biology. For microbes, plate readers are a popular, convenient means to measure growth and also gene expression using fluorescent reporters. Nevertheless, the difficulties of analysing the resulting data can be a bottleneck, particularly when combining measurements from different wells and plates. Here we present omniplate, a Python module that corrects and normalises plate-reader data, estimates growth rates and fluorescence per cell as function of time, calculates errors, exports in different formats, and enables meta-analysis of multiple plates. The software corrects for autofluorescence, the optical density's non-linear dependence on the number of cells, and the effects of the media. We use omniplate to measure the Monod relationship for growth of budding yeast in raffinose, showing that raffinose is a convenient carbon source for controlling growth rates. Using fluorescent tagging, we study yeast's glucose transport. Our results are consistent with the regulation of the hexose transporter (HXT) genes being approximately bipartite: the medium and high affinity transporters are regulated by both the high affinity glucose sensor Snf3 and the kinase complex SNF1 via the repressors Mth1, Mig1, and Mig2; the low affinity transporters are predominately regulated by the low affinity sensor Rgt2 via the co-repressor Std1. We thus demonstrate that omniplate is a powerful tool for exploiting the advantages offered by time-series data in revealing biological regulation.
dc.description Time-series data for strains of budding yeast growing in Tecan microplate readers in low fluorescence SC media with either glucose or raffinose as a carbon source. Pre-growth was in 2% pyruvate. Measurements are taken every five minutes and experiments run for approximately 20 hours. More information is in README.txt.
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dc.language eng
dc.publisher University of Edinburgh. School of Biological Sciences
dc.relation https://doi.org/10.1371/journal.pcbi.1010138
dc.relation Analysing and meta-analysing time-series data of microbial growth and gene expression from plate readers Montaño-Gutierrez LF, Moreno NM, Farquhar IL, Huo Y, Bandiera L, et al. (2022) Analysing and meta-analysing time-series data of microbial growth and gene expression from plate readers. PLOS Computational Biology 18(5): e1010138. https://doi.org/10.1371/journal.pcbi.1010138
dc.rights Creative Commons Attribution 4.0 International Public License
dc.subject plate readers
dc.subject time-series analysis
dc.subject growth rate
dc.subject fluorescence
dc.subject budding yeast
dc.subject glucose transport
dc.subject Biological Sciences::Cell Biology
dc.title Analysing and meta-analysing time-series data of microbial growth and gene expression from plate readers
dc.type dataset


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HXTdeletions_r.tsv 13.48Mb text/tab-separated-values View/Open
HXTdeletions_s.tsv 6.655Mb text/tab-separated-values View/Open
HXTdeletions_sc.tsv 19.29Kb text/tab-separated-values View/Open
raffinose_r.tsv 2.653Mb text/tab-separated-values View/Open
raffinose_s.tsv 1.037Mb text/tab-separated-values View/Open
raffinose_sc.tsv 10.27Kb text/tab-separated-values View/Open
README.txt 1.117Kb text/plain View/Open

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