3Q28

Cyrstal structure of human alpha-synuclein (58-79) fused to maltose binding protein (MBP)

• PDB DOI: https://doi.org/10.2210/pdb3Q28/pdb

• Classification: SUGAR BINDING PROTEIN, PROTEIN FIBRIL
• Organism(s): Escherichia coli, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-12-19 Released: 2011-06-01 
• Deposition Author(s): Zhao, M., Sawaya, M.R., Cascio, D., Eisenberg, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.173 
• R-Value Work: 0.152 
• R-Value Observed: 0.153 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 43.63 kDa 
• Atom Count: 3,405 
• Modelled Residue Count: 386 
• Deposited Residue Count: 393 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Maltose-binding periplasmic protein/alpha-synuclein chimeric protein	A	393	Escherichia coli, Homo sapiens This entity is chimeric	Mutation(s): 0  Gene Names: SNCA
UniProt & NIH Common Fund Data Resources
Find proteins for P0AEX9 (Escherichia coli (strain K12)) Explore P0AEX9  Go to UniProtKB:  P0AEX9
Find proteins for P37840 (Homo sapiens) Explore P37840  Go to UniProtKB:  P37840
PHAROS:  P37840 GTEx:  ENSG00000145335
UniProt Groups	P37840P0AEX9

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	B	2		N/A
Glycosylation Resources
GlyTouCan:  G07411ON GlyCosmos:  G07411ON

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], E [auth A], F [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900001	B	alpha-maltose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.173 
• R-Value Work: 0.152 
• R-Value Observed: 0.153 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.54	α = 90
b = 48.57	β = 94.23
c = 57.85	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-06-01 
Deposition Author(s): Zhao, M., Sawaya, M.R., Cascio, D., Eisenberg, D.

Revision History  

• Version 1.0: 2011-06-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-08-02
  Changes: Refinement description, Source and taxonomy
• Version 1.3: 2017-10-11
  Changes: Data collection
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-09-13
  Changes: Data collection, Database references, Refinement description, Structure summary