3OB4

MBP-fusion protein of the major peanut allergen Ara h 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Ara h 2: crystal structure and IgE binding distinguish two subpopulations of peanut allergic patients by epitope diversity.

Mueller, G.A.Gosavi, R.A.Pomes, A.Wunschmann, S.Moon, A.F.London, R.E.Pedersen, L.C.

(2011) Allergy 66: 878-885

  • DOI: 10.1111/j.1398-9995.2010.02532.x
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Peanut allergy affects 1% of the population and causes the most fatal food-related anaphylactic reactions. The protein Ara h 2 is the most potent peanut allergen recognized by 80-90% of peanut allergic patients.

    Peanut allergy affects 1% of the population and causes the most fatal food-related anaphylactic reactions. The protein Ara h 2 is the most potent peanut allergen recognized by 80-90% of peanut allergic patients.


    Organizational Affiliation

    Laboratory of Structural Biology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA. mueller3@niehs.nih.gov



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Maltose ABC transporter periplasmic protein, Arah 2
A
500Escherichia coliArachis duranensis
This entity is chimeric
Mutation(s): 8 
Gene Names: HMPREF9530_03068Ara d 2.01
Find proteins for D8A942 (Escherichia coli (strain MS 21-1))
Go to UniProtKB:  D8A942
Find proteins for A5Z1Q8 (Arachis duranensis)
Go to UniProtKB:  A5Z1Q8
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLR
Query on MLR

Download CCD File 
A
MALTOTRIOSE
C18 H32 O16
FYGDTMLNYKFZSV-PXXRMHSHSA-N
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.187 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.847α = 90
b = 87.381β = 103.93
c = 113.137γ = 90
Software Package:
Software NamePurpose
MAR345data collection
MOLREPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-02-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-08-09
    Changes: Refinement description, Source and taxonomy
  • Version 1.3: 2017-11-08
    Changes: Refinement description
  • Version 1.4: 2020-02-26
    Changes: Database references