Supplementary Figure 8: KH motif alignment of yeast proteins cross-linked to 4SU.

Proteins are identified by their gene names, the corresponding recommended protein names can be found in Supplementary Table 3. The number of the respective KH and the positions of the first and the last residue within the KH are given next to the sequences. The consensus VIGXXGXXI map is marked with light gray. Peptides found cross-linked to RNA are underlined, cross-linked regions are highlighted in yellow, if the MS/MS fragment spectrum allowed to narrow down the cross-linking site to a single amino acid residue is shown in red.