The GAL::HA-efg1/ENP1-TAP strain was transformed with a pRS415-GPD plasmid expressing full length or truncated Efg1. Single clones of the transformants of similar size were cultured, 5-fold serially diluted and spotted onto plates containing SC medium with galactose or glucose. The plates were incubated at 30 or 37°C for 2 days or at 18°C for 4 days. Strains UTP9-TAP, efg1Δ/UTP9-TAP and efg1Δ/UTP9-TAP complemented with pRS415-GPD-EFG1 were spotted on YPD plates.
Immunoprecipitation was conducted as described below. For western blot analysis, proteins were separated in 4–20% sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) gels and transferred to 0.45 μm polyvinylidene fluoride (PVDF) membranes (GE Healthcare) using a semi-dry electrophoretic transfer cell (BioRad). HRP-conjugated anti-Flag (1:10000, Sigma) and HRP-conjugated anti-HA antibodies (1:3000, CST) were used with appropriate dilution ratios. Ribosome profile assays were performed as previously described (21 (link)).