MAPT and tauopathy: The accumulation of hyperphosphorylated and aggregated microtubule‐associated protein Tau (MAPT) is a central feature of a class of neurodegenerative diseases that are termed “tauopathies.” The continuing increase in the adult‐born neurons indicates that tauopathies are characterized by increased neurogenesis.1 The molecular weight of the Tau protein is 50‐64 kDa and it is a product of the TAU gene that is located in chromosome 17.