8EPU

1.6 A crystal structure of the lipocalin dog allergen Can f 1 with the C118S mutation

• PDB DOI: https://doi.org/10.2210/pdb8EPU/pdb

• Classification: ALLERGEN
• Organism(s): Canis lupus familiaris
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2022-10-06 Released: 2023-04-05 
• Deposition Author(s): Min, J., Pedersen, L.C., Geoffrey, M.A.
• Funding Organization(s): National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.230 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 

Literature

Structural and ligand binding analysis of the pet allergens Can f 1 and Fel d 7.

Min, J., Foo, A.C.Y., Gabel, S.A., Perera, L., DeRose, E.F., Pomes, A., Pedersen, L.C., Mueller, G.A.

(2023) Front Allergy 4: 1133412-1133412

• PubMed: 36960093 
• DOI: https://doi.org/10.3389/falgy.2023.1133412
• Primary Citation of Related Structures:  
  8EPU, 8EPV


• PubMed Abstract: 
  

  Pet lipocalins are respiratory allergens with a central hydrophobic ligand-binding cavity called a calyx. Molecules carried in the calyx by allergens are suggested to influence allergenicity, but little is known about the native ligands.

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Organizational Affiliation: 

Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 16.57 kDa 
• Atom Count: 1,170 
• Modelled Residue Count: 145 
• Deposited Residue Count: 149 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Major allergen Can f 1	A	149	Canis lupus familiaris	Mutation(s): 1
UniProt
Find proteins for O18873 (Canis lupus familiaris) Explore O18873  Go to UniProtKB:  O18873

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.230 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.214	α = 90
b = 36.512	β = 100.8
c = 57.973	γ = 90

Software Package:

Software Name	Purpose
SERGUI	data collection
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-04-05 
Deposition Author(s): Min, J., Pedersen, L.C., Geoffrey, M.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)	United States	--

Revision History  

• Version 1.0: 2023-04-05
  Type: Initial release
  
• Version 1.1: 2024-04-03
  Changes: Data collection, Refinement description