Proline-directed pseudo-phosphorylation at AT8 and PHF1 epitopes induces a compaction of the paperclip folding of Tau and generates a pathological (MC-1) conformation.

Abstract excerpt

Tau, a neuronal microtubule-associated protein that aggregates in Alzheimer disease is a natively unfolded protein. In solution, Tau adopts a "paperclip" conformation, whereby the N- and C-terminal domains approach each other and the repeat domain ( Jeganathan, S., von Bergen, M., Brutlach, H., Steinhoff, H. J., and Mandelkow, E. (2006) Biochemistry 45, 2283-2293 ). In AD, Tau is in a hyperphosphorylated state....

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