Benchmarking of deep learning-facilitated phosphosite localization on the synthetic dataset.A, four site localization methods were benchmarked. B, the number of correctly localized PSMs at different levels of PSM FLR are shown for the four methods, respectively. The numbers of correctly localized PSMs at 1% FLR and the percent increase compared with Method 1 (phosphoRS) are indicated. C, upSet plot comparing the PSM identifications from the four methods. The number of correctly localized PSMs by Method 4 are marked as red. D, the FLRs at different site probability cutoffs are shown. The FLRs at 0.75 site probability are indicated.