(B) Schematic view of the S. pombe (Sp) Taf12 protein sequence, including, in red, the three differentially phosphorylated Thr, at positions 218, 221, and 283 and, in grey, the histone-fold domain. Shown below are the starved-to-rich SILAC ratios of the signal intensities observed for the Thr218-Thr221 peptide (Appendix Figure S3) and for the Thr283 peptide (Appendix Figure S4). 