Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 18-mer - A18 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 714.87 
• Atom Count: 50 
• Residue Count: 6 
• Unique protein chains: 1

5V5C

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

• DOI: 10.2210/pdb5V5C/pdb
• EMDataResource: EMD-8635

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens


• Deposited: 2017-03-14 Released: 2018-02-07 
• Deposition Author(s): Seidler, P.M., Sawaya, M.R., Rodriguez, J.A., Eisenberg, D.S., Cascio, D., Boyer, D.R.
• Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke; National Institutes of Health/National Institute on Aging 

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Experimental Data Snapshot

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

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

• PubMed: 29359764 
• 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 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.

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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	Homo sapiens	Mutation(s): 0  Gene 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 Name	Purpose
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing
XSCALE	data scaling
BUSTER	refinement

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-03-14 
• Released Date: 2018-02-07 
• Deposition Author(s): Seidler, P.M., Sawaya, M.R., Rodriguez, J.A., Eisenberg, D.S., Cascio, D., Boyer, D.R.

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Funding Organization	Location	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
• Version 1.2: 2018-06-06
  Type: Data collection, Refinement description