Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 1349.19 
• Atom Count: 86 
• Residue Count: 6 
• Unique protein chains: 1

3OVL

Structure of an amyloid forming peptide VQIVYK from the TAU protein in complex with orange G

• DOI: 10.2210/pdb3OVL/pdb

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


• Deposited: 2010-09-16 Released: 2011-07-06 
• Deposition Author(s): Landau, M., Eisenberg, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.259 
• R-Value Work: 0.259 

Literature

Towards a pharmacophore for amyloid.

Landau, M., Sawaya, M.R., Faull, K.F., Laganowsky, A., Jiang, L., Sievers, S.A., Liu, J., Barrio, J.R., Eisenberg, D.

(2011) Plos Biol. 9: e1001080-e1001080

• PubMed: 21695112 
• DOI: 10.1371/journal.pbio.1001080
• Primary Citation of Related Structures:  
  3OVJ


• PubMed Abstract: 
  

Diagnosing and treating Alzheimer's and other diseases associated with amyloid fibers remains a great challenge despite intensive research. To aid in this effort, we present atomic structures of fiber-forming segments of proteins involved in Alzheimer's disease in complex with small molecule binders, determined by X-ray microcrystallography. The fiber-like complexes consist of pairs of β-sheets, with small molecules binding between the sheets, roughly parallel to the fiber axis. The structures suggest that apolar molecules drift along the fiber, consistent with the observation of nonspecific binding to a variety of amyloid proteins. In contrast, negatively charged orange-G binds specifically to lysine side chains of adjacent sheets. These structures provide molecular frameworks for the design of diagnostics and drugs for protein aggregation diseases.

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Organizational Affiliation: 

Howard Hughes Medical Institute, UCLA-DOE Institute for Genomics and Proteomics, Department of Biological Chemistry, University of California, Los Angeles, California, United States of America.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Microtubule-associated protein	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

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
ORA	A	7-hydroxy-8-[(E)-phenyldiazenyl]naphthalene-1,3-disulfonic acid Orange G C16 H12 N2 O7 S2 MPVDXIMFBOLMNW-ISLYRVAYSA-N
ACY	A	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.259 
• R-Value Work: 0.259 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 55.056	α = 90.00
b = 4.831	β = 102.98
c = 22.127	γ = 90.00

Software Package:

Software Name	Purpose
PDB_EXTRACT	data extraction
SCALEPACK	data scaling
REFMAC	refinement
PHASER	phasing
DENZO	data reduction
ADSC	data collection

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-09-16 
• Released Date: 2011-07-06 
• Deposition Author(s): Landau, M., Eisenberg, D.

Revision History 

• Version 1.0: 2011-07-06
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance