Fig. 3: 40S reads are enriched on start codons at upstream ORFs (uORFs).

a 40S ribosome footprint profiles of the 5′UTR of the GCN4 gene showing 40S footprint occupancy peaks at 5′UTR uORF AUG codons. Gene annotations are drawn to correspond to data for ribosome P sites. b Average fraction of 40S ribosome occupancy in a window surrounding 5′UTR AUG codons. Data shown for WT and rpl11b∆ cells. Source data are provided as a Source Data file. See also Supplementary Fig. 3.