Figure 4. Turnover rate of specific r-proteins in Arabidopsis cell culture.
(A) Degradation rate of core 60S ribosomal subunit proteins and the putative 60S-transacting factor Mrt4/RPP0D. (B) Degradation rate of 40S ribosomal subunit proteins. In both (A) and (B) the mean degradation rate value for each protein was calculated using data from ≥ 3 biological replicates and included data from ≥ 5 peptide spectra. Error bars: standard error. * indicates significant difference from the mean of the ribosome (based on t-tests P < 0.05). (C) Box plots of KD values for r-proteins of the 60S large and 40S small subunits.