Phosphopeptide enrichment is essential for large-scale phosphoprotein profiling. Titanium dioxide (TiO2) is widely used in phosphopeptide enrichment, but it is limited in the isolation of multiphospho
Casein Kinase 2 (CSNK2) is an extremely pleiotropic, ubiquitously expressed protein kinase involved in the regulation of numerous key biological processes. Mapping the CSNK2-dependent phosphoproteome