Figure 3. Overview of tau quality control by molecular chaperones.
From the microtubule-bound pool, tau might be released in a form that is capable of re-binding microtubule (termed ‘cycling tau’). Alternatively, hyperphosphorylated and aggregation-prone tau might accumulate. Chaperones are involved in all stages of cycling tau, in mediating phosphorylation and in making triage decisions.
BAG: Bcl2-associated anthanogene; CHIP: C-terminal Hsp70 interacting protein; FKBP51: FK506-binding protein 51 kDa; Hsp: Heat shock protein.
