(D) Translation efficiency of UUG-enriched, leucine-enriched, proline-enriched and random genes in each sample. A gene was considered enriched in a certain codon when the proportion of this codon in the gene was at least 3-fold higher than the proportion of the same codon across the transcriptome. Data information: In n = 3 biological replicates. In (D), boxplots show the median (central band) and IQR (boxes) ± 1.5 x IQR (whiskers), Welch's t-test, p-value < 0.05. 