5V5C

VQIINK, Structure of the amyloid-spine from microtubule associated protein tau Repeat 2


Experimental Data Snapshot

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Aggregation State: 3D ARRAY 
  • Reconstruction Method: CRYSTALLOGRAPHY 

wwPDB Validation  3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-based inhibitors of tau aggregation.

Seidler, P.M.Boyer, D.R.Rodriguez, J.A.Sawaya, M.R.Cascio, D.Murray, K.Gonen, T.Eisenberg, D.S.

(2018) Nat Chem 10: 170-176

  • DOI: 10.1038/nchem.2889
  • Primary Citation of Related Structures:  5V5B

  • PubMed Abstract: 
  • Aggregated tau protein is associated with over 20 neurological disorders, which include Alzheimer's disease. Previous work has shown that tau's sequence segments VQIINK and VQIVYK drive its aggregation, but inhibitors based on the structure of the VQ ...

    Aggregated tau protein is associated with over 20 neurological disorders, which include Alzheimer's disease. Previous work has shown that tau's sequence segments VQIINK and VQIVYK drive its aggregation, but inhibitors based on the structure of the VQIVYK segment only partially inhibit full-length tau aggregation and are ineffective at inhibiting seeding by full-length fibrils. Here we show that the VQIINK segment is the more powerful driver of tau aggregation. Two structures of this segment determined by the cryo-electron microscopy method micro-electron diffraction explain its dominant influence on tau aggregation. Of practical significance, the structures lead to the design of inhibitors that not only inhibit tau aggregation but also inhibit the ability of exogenous full-length tau fibrils to seed intracellular tau in HEK293 biosensor cells into amyloid. We also raise the possibility that the two VQIINK structures represent amyloid polymorphs of tau that may account for a subset of prion-like strains of tau.


    Organizational Affiliation

    Departments of Chemistry and Biochemistry and Biological Chemistry, UCLA-DOE Institute, UCLA, Los Angeles, California 90095, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule Chains Sequence Length Organism Details
Microtubule-associated protein tau
A
6 N/A N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Aggregation State: 3D ARRAY 
  • Reconstruction Method: CRYSTALLOGRAPHY 
Software Package:
Software Name Purpose
PHASER phasing
PDB_EXTRACT data extraction
PHASER molecular replacement
XSCALE data scaling
BUSTER refinement
XDS data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding Organization Country Grant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke United States 1F32 NS095661
National Institutes of Health/National Institute on Aging United States 1R01 AG029430
National Institutes of Health/National Institute on Aging United States RF1 AG054022

Revision History 

  • Version 1.0: 2018-02-07
    Type: Initial release
  • Version 1.1: 2018-02-14
    Type: Author supporting evidence