Proteotoxicity caused by perturbed protein complexes underlies hybrid incompatibility in yeast

Fig. 3: A number of protein complexes are destabilized in 8+15L and 16L cells.
figure 3
a Workflow of the SEC-based evaluation of the formation of protein complexes. SEC, SILAC, and mass spectrometry had been mixed to check the formation of protein complexes in Sc and 16L cells (see Strategies for particulars). The dotted pink containers spotlight a steady complicated within the Sc line however partially disassembled in 16L cells. The subunits of this complicated are anticipated to elute in numerous fractions for the Sc and 16L cells, resulting in distinct elution patterns. b The protein complexes with subunits on Chromosomes 8+15 and Chromosome 16 are much less steady than non-Chromosome 8+15 and 16 subunit-containing complexes. Elution sample distinction (EPD) values had been calculated for each protein in Sc-heavy/Sc-light (Sc/Sc), Sc-heavy/16L-light (Sc/16L), and Sc-heavy/8+15L-light (Sc/8+15L) units (additionally see Supplementary Fig. 5). The distributions of EPD values for various teams of proteins of the Sc/Sc, Sc/16L and Sc/8+15L units are proven in field plots and the protein numbers of every group are 2342 (whole), 1359 (complicated), 983 (non-complex), 735 (Chr16 complicated), 624 (non-Chr16 complicated), 866 (Chr8+15 complicated), and 493 (non-Chr8+15 complicated). Distributions with the identical letter (above every boxplot) are usually not considerably completely different from one another (Dunn’s pairwise checks with Bonferroni correction, p-values > 0.05, see Supplementary Information 11 for the p-values of all Dunn’s pairwise checks). n.s.: not vital. c Twenty-three protein complexes are considerably destabilized in 8+15L and 16L cells. A protein complicated was outlined as unstable if the EPD values of the complicated subunits within the Sc/16L or Sc/8+15L units had been considerably increased than these within the Sc/Sc set. Right here, 7 protein complexes are destabilized in each 8+15L and 16L cells (black), 3 unstable complexes are particular to 16L (inexperienced) and 13 complexes are unstable solely in 8+15L (blue). Additionally, see Supplementary Fig. 6. Boxplots point out median (center line), twenty fifth and seventy fifth percentile (field), and min and max (whiskers). The abstract of boxplots is supplied in Supplementary Information 12 and supply information are supplied as a Supply Information file.

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