MAPT and cancer: However, a systematic understanding of Tau phosphorylation across cancers remains limited.<h4>Methods</h4>We performed an integrative analysis of human cellular phosphoproteomics datasets to examine the Tau phosphorylation beyond its canonical neuronal roles.<h4>Results</h4>The comprehensive analysis of global cellular phosphoproteomics datasets revealed that the Tau phosphosites, such as S519, S713, S717, and S721, were present across various experimental conditions.