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Study of the yeast cytosolic Hsp70-system in protein homeostasis and life span regulation - Hsp70-mutant yeast strains with the misfolding marker protein guk1-7-GFP and with or without an intact HSP104-allele, imaged during mid-exponential growth

https://doi.org/10.5878/d0ya-5n21
Our study aims to answer the question "Which functions of the Hsp70 class of molecular chaperones are essential for yeast to maintain a standard replicative life span?". To answer this question, we utilised the disparate functions of the Hsp70's Ssa1 and 2 and their paralog Ssa4 in a yeast strain that lacks Ssa1/2 but has an ectopically increased production of Ssa4. We have gathered data on the behaviour of several different markers for protein aggregation under different circumstances, as well as data on proteins from other classes of molecular chaperones. The bulk of the data is in the form of multichannel microscopy images from widefield microscopy, with a few sets of western blots of protein extracts. Fluorescence microscopy of live yeast cells at mid-exponential growth. The yeast is grown in complete synthetic medium with 2 % glucose as carbon source. All strains produce the aggregate marker protein guk1-7-GFP. The dataset was collected through fluorescence microscopy. The image files are provided in Carl Zeiss Image format (.czi).
Download data and documentation (17 files / 1.58 GiB)

Data files

Documentation files

  • 2D gel electrophoresis.pdf
    330.81 KiB
  • Data set file index.xlsx
    42.92 KiB
  • GFP-HSP104 in WT and HSP70 mutants.pdf
    338.1 KiB
  • GFP-HSP104 in WT and ssa12DD with SSA1-4 chimaeras.pdf
    342.27 KiB
  • guk1-7-GFP microscopy.pdf
    338.56 KiB
  • guk1-7-GFP w Sik1-RFP and DAPI.pdf
    339.77 KiB
  • guk1-7-GFP w-wo HSP104 microscopy.pdf
    341.27 KiB
  • gus1-3-GFP microscopy.pdf
    335.64 KiB
  • Hsp42 IF microscopy.pdf
    536.47 KiB
  • Mca1-GFP microscopy.pdf
    335.98 KiB
  • ReadMe Access to microscopy files.pdf
    225.14 KiB
  • Ssa4-GFP Mca1-RFP microscopy.pdf
    510.88 KiB
  • Timelapse microscopy.pdf
    343.15 KiB
  • Total Hsp70 western blots.pdf
    587.73 KiB

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Data contains personal data:

No

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Method and outcome

Unit of analysis:

Population:

Saccharomyces cerevisiae (Baker's yeast)

Study design:

  • Experimental study
  • Preclinical study

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Data format/​data structure:

Data collection Biological tests

Mode of collection:

Biological tests

Time period(s) for data collection:

2019-04-23 - 2019-04-25

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Source of the data:

  • Research data: Unpublished
  • Biological samples
  • Research data

Administrative information

Responsible department/​unit:

Institute of Biomedicine, Department of Microbiology and Immunology

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Topic and keywords

Standard för svensk indelning av forskningsämnen 2025:

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Citation:

Andersson R, Eisele-Bürger AM, Hanzén S, Vielfort K, Öling D, Eisele F, Johansson G, Gustafsson T, Kvint K, Nyström T. Differential role of cytosolic Hsp70s in longevity assurance and protein quality control. bioRxiv. 2020 Jun 29. Available from: https://www.biorxiv.org/content/10.1101/2020.06.25.170670v2.fullOpens in a new tab

Citation:

Andersson R, Eisele-Bürger AM, Hanzén S, Vielfort K, Öling D, Eisele F, et al. (2021) Differential role of cytosolic Hsp70s in longevity assurance and protein quality control. PLoS Genet 17(1): e1008951.

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