SILAC-based phosphoproteomic profiling of kinase-enriched fractions from HCT-116 cells treated with the DFG-out pan-RAF inhibitor LF-268 to characterize kinase signaling responses. Cells were metabolically labeled and treated with 1 µM LF-268 or DMSO for 1 hour, followed by serial kinobead enrichment and Fe³⁺-NTA IMAC phosphopeptide enrichment prior to LC-MS/MS.