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Structural Basis For Ternary Complex Formation Between Tau, Hsp90, And Fkbp51, Alexander Steven Barrett
Structural Basis For Ternary Complex Formation Between Tau, Hsp90, And Fkbp51, Alexander Steven Barrett
USF Tampa Graduate Theses and Dissertations
The accumulation of the microtubule associated protein tau has been implicated in several neurological disorders; however, its interaction with chaperones along its normal degradation pathway remains largely uncharacterized at single residue resolution. In this study, nuclear magnetic resonance (NMR) spectroscopy was used to probe the interaction between tau, the molecular chaperone Hsp90, and the immunophilin FKBP51. Resonance intensity changes were observed for specific residues in the heteronuclear single quantum coherence (HSQC) spectra of 15N-labeled tau in the presence of Hsp90 and/or FKBP51. Analysis of the HSQC spectra identified the two hydrophobic hexapeptide motifs located at residues V275 - K280 and …