4BXL

Structure of alpha-synuclein in complex with an engineered binding protein

• PDB DOI: https://doi.org/10.2210/pdb4BXL/pdb

• Classification: FIBRIL
• Organism(s): synthetic construct, Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-07-12 Released: 2014-05-21 
• Deposition Author(s): Mirecka, E.A., Shaykhalishahi, H., Lecher, J., Stoldt, M., Hoyer, W.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: LOWEST ENERGY 

Literature

Sequestration of a Beta-Hairpin for Control of Alpha-Synuclein Aggregation.

Mirecka, E.A., Shaykhalishahi, H., Gauhar, A., Akgul, S., Lecher, J., Willbold, D., Stoldt, M., Hoyer, W.

(2014) Angew Chem Int Ed Engl 53: 4227

• PubMed: 24623599 
• DOI: https://doi.org/10.1002/anie.201309001
• Primary Citation of Related Structures:  
  4BXL


• PubMed Abstract: 
  

  The misfolding and aggregation of the protein α-synuclein (α-syn), which results in the formation of amyloid fibrils, is involved in the pathogenesis of Parkinson's disease and other synucleinopathies. The emergence of amyloid toxicity is associated with the formation of partially folded aggregation intermediates. Here, we engineered a class of binding proteins termed β-wrapins (β-wrap proteins) with affinity for α-synuclein (α-syn). The NMR structure of an α-syn:β-wrapin complex reveals a β-hairpin of α-syn comprising the sequence region α-syn(37-54). The β-wrapin inhibits α-syn aggregation and toxicity at substoichiometric concentrations, demonstrating that it interferes with the nucleation of aggregation.

---

Organizational Affiliation: 

Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, 40204 Düsseldorf (Germany).

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 12.38 kDa 
• Atom Count: 873 
• Modelled Residue Count: 114 
• Deposited Residue Count: 114 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AS69	A, B	46	synthetic construct	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA SYNUCLEIN	C	22	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P37840 (Homo sapiens) Explore P37840  Go to UniProtKB:  P37840
PHAROS:  P37840 GTEx:  ENSG00000145335

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: LOWEST ENERGY 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-05-21 
Deposition Author(s): Mirecka, E.A., Shaykhalishahi, H., Lecher, J., Stoldt, M., Hoyer, W.

Revision History  

• Version 1.0: 2014-05-21
  Type: Initial release
  
• Version 1.1: 2024-10-09
  Changes: Data collection, Database references, Other, Structure summary