5V5B

KVQIINKKLD, 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:  5V5C

  • 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
MoleculeChainsSequence LengthOrganismDetails
Microtubule-associated protein tau
A
10Homo sapiensGene Names: MAPT (MAPTL, MTBT1, TAU)
Find proteins for P10636 (Homo sapiens)
Go to Gene View: MAPT
Go to UniProtKB:  P10636
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Aggregation State: 3D ARRAY 
  • Reconstruction Method: CRYSTALLOGRAPHY 
Software Package:
Software NamePurpose
XDSdata reduction
PDB_EXTRACTdata extraction
XSCALEdata scaling
PHASERphasing
PHASERmolecular replacement
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Institutes of Health/National Institute on AgingUnited States1R01 AG029430
National Institutes of Health/National Institute on AgingUnited StatesRF1 AG054022
National Institutes of Health/National Institute of Neurological Disorders and StrokeUnited States1F32 NS095661
BrightFocus FoundationUnited StatesA2016588F

Revision History 

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