3V0R

Crystal structure of Alternaria alternata allergen Alt a 1

• PDB DOI: https://doi.org/10.2210/pdb3V0R/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Alternaria alternata
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-12-08 Released: 2012-06-13 
• Deposition Author(s): Chruszcz, M., Solberg, R., Osinski, T., Chapman, M.D., Minor, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.190 
• R-Value Work: 0.167 
• R-Value Observed: 0.168 

Literature

Alternaria alternata allergen Alt a 1: a unique beta-barrel protein dimer found exclusively in fungi.

Chruszcz, M., Chapman, M.D., Osinski, T., Solberg, R., Demas, M., Porebski, P.J., Majorek, K.A., Pomes, A., Minor, W.

(2012) J Allergy Clin Immunol 130: 241-7.e9

• PubMed: 22664167 
• DOI: https://doi.org/10.1016/j.jaci.2012.03.047
• Primary Citation of Related Structures:  
  3V0R


• PubMed Abstract: 
  

  Alternaria species is one of the most common molds associated with allergic diseases, and 80% of Alternaria species-sensitive patients produce IgE antibodies to a major protein allergen, Alt a 1. The structure and function of Alt a 1 is unknown.

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Organizational Affiliation: 

Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 15.57 kDa 
• Atom Count: 1,236 
• Modelled Residue Count: 130 
• Deposited Residue Count: 133 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Major allergen Alt a 1	A	133	Alternaria alternata	Mutation(s): 0  Gene Names: ALTA1
UniProt
Find proteins for P79085 (Alternaria alternata) Explore P79085  Go to UniProtKB:  P79085

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
8AC	L [auth A]	8-aminooctanoic acid C8 H17 N O2 UQXNEWQGGVUVQA-UHFFFAOYSA-N
0FU	J [auth A], K [auth A], M [auth A]	2,5,6-triaminopyrimidin-4-ol C4 H7 N5 O SYEYEGBZVSWYPK-UHFFFAOYSA-N
SO4	B [auth A], C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
UNX	F [auth A], G [auth A], H [auth A], I [auth A]	UNKNOWN ATOM OR ION X

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.190 
• R-Value Work: 0.167 
• R-Value Observed: 0.168 
• Space Group: I 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.016	α = 90
b = 70.016	β = 90
c = 179.27	γ = 90

Software Package:

Software Name	Purpose
HKL-3000	data collection
MD2	data collection
HKL-3000	phasing
MLPHARE	phasing
DM	model building
PARROT	phasing
RESOLVE	model building
ARP/wARP	model building
CCP4	model building
REFMAC	refinement
Coot	model building
HKL-2000	data reduction
HKL-2000	data scaling
DM	phasing
RESOLVE	phasing
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-06-13 
Deposition Author(s): Chruszcz, M., Solberg, R., Osinski, T., Chapman, M.D., Minor, W.

Revision History  

• Version 1.0: 2012-06-13
  Type: Initial release
  
• Version 1.1: 2013-06-19
  Changes: Database references
• Version 1.2: 2022-04-13
  Changes: Database references, Derived calculations, Structure summary