Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 14.38 kDa 
• Atom Count: 1034 
• Modelled Residue Count: 136 
• Deposited Residue Count: 136 
• Unique protein chains: 1

6B6J

Structure of profilin Art v4

• PDB DOI: 10.2210/pdb6B6J/pdb

• Classification: ALLERGEN
• Organism(s): Artemisia vulgaris
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2017-10-02 Released: 2018-10-03 
• Deposition Author(s): Pye, S.E., Pote, S.S., Chruszcz, M.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.214 
• R-Value Work: 0.167 
• R-Value Observed: 0.170 

Literature

Comparative structural and thermal stability studies of Cuc m 2.0101, Art v 4.0101 and other allergenic profilins.

Kapingidza, A.B., Pye, S.E., Hyduke, N., Dolamore, C., Pote, S., Schlachter, C.R., Commins, S.P., Kowal, K., Chruszcz, M.

(2019) Mol Immunol 114: 19-29

• PubMed: 31326654 
• DOI: 10.1016/j.molimm.2019.07.004
• Primary Citation of Related Structures:  
  6B6J, 6MBX


• PubMed Abstract: 
  

Worldwide, more than one-third of the population suffers from allergies. A significant fraction of officially registered allergens originate from the profilin family of proteins. Profilins are small ubiquitous proteins which are found in plants, viruses and various eukaryotes including mammals. Although they are primarily regarded as minor allergens, profilins are important players in immunoglobulin E (IgE) cross-reactivity. However, in some populations profilins are recognized by IgE from at least 50% of patients allergic to a given allergen source. Cuc m 2.0101 is recognized by IgE in more than 80% of muskmelon-allergic patients. The recombinant isoallergen Cuc m 2.0101 was produced in significant quantities and its X-ray crystal structure was determined. In addition, a new Art v 4.0101 (mugwort profilin) structure was determined. The profilins Cuc m 2.0101 and Art v 4.0101 were compared in terms of their structure and thermal stability. Furthermore, structural similarities and IgE cross-reactivity between profilins from different sources are discussed to explain the molecular basis of various clinical syndromes involving this group of allergens. Special emphasis is placed on discussion of profilins' quaternary structures and their relation to biological function, as well as to protein allergenicity. Moreover, a potential impact of protein purification protocols on the structure of profilins is highlighted.

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Organizational Affiliation: 

Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Profilin-1	A	136	Artemisia vulgaris	Mutation(s): 0
UniProt
Find proteins for Q8H2C9 (Artemisia vulgaris) Explore Q8H2C9  Go to UniProtKB:  Q8H2C9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.214 
• R-Value Work: 0.167 
• R-Value Observed: 0.170 
• Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.675	α = 90
b = 32.675	β = 90
c = 81.782	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-10-02 
• Released Date: 2018-10-03 
Deposition Author(s): Pye, S.E., Pote, S.S., Chruszcz, M.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI077653

Revision History  

• Version 1.0: 2018-10-03
  Type: Initial release
  
• Version 1.1: 2019-02-20
  Changes: Author supporting evidence, Data collection
• Version 1.2: 2019-08-07
  Changes: Data collection, Database references
• Version 1.3: 2019-12-11
  Changes: Author supporting evidence