P4‐258: ON THE NATURE OF THE TAU R406W MUTATION: INCREASED CIS PSER404‐PRO405 AMIDE BOND IN TAU R406W DUE TO A PHOSPHORYLATION‐SENSITIVE CIS‐PROLINE‐AROMATIC INTERACTION. (1st July 2014) - Zondlo, Neal Joseph; Pandey, Anil; Ganguly, Himal; Elbaum, Michael; Brister, Michael