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. 2019 Jul 12;47(16):8807–8820. doi: 10.1093/nar/gkz600

Figure 2.

Figure 2.

ATPase-deficient New1-EQ2 inhibits cell growth and stably co-sediments with polysomal fractions. (A) Expression of New1-EQ2-TAP, but not wild-type New1-TAP causes growth inhibition. The strains were grown in SC-ura medium at 30°C and expression of New1-TAP or New1-EQ2-TAP was induced by addition of β-estradiol to final concentration of 1 μM as indicated by the green arrow. OD600 measurements are presented as geometric means of three independent transformants, and standard error of the mean is indicated with shading. (B) Polysome profile and immunoblot analyses of yeast strains expressing New1-TAP or New1-EQ2-TAP. The cells were grown at 30°C and at OD600 ≈ 0.3 protein expression was induced by 1 μM β-estradiol. The cells were collected after 3 h, clarified lysates resolved on sucrose gradients (either in the absence of nucleotides or supplemented by 1 mM ATP/AMP-PNP), and TAP-tag detected by slot-blotting using rabbit Peroxidase-anti-peroxidase. Full-size Western blots of wild-type and EQ2 New-TAP are presented on Supplementary Figure S5C.