8AMC

Crystal Structure of cat allergen Fel d 4

• PDB DOI: https://doi.org/10.2210/pdb8AMC/pdb

• Classification: ALLERGEN
• Organism(s): Felis catus
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2022-08-03 Released: 2023-08-16 
• Deposition Author(s): Schooltink, L., Sagmeister, T., Gottstein, N., Pavkov-Keller, T., Keller, W.
• Funding Organization(s): Austrian Science Fund

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free: 0.230 
• R-Value Work: 0.179 

Literature

Crystal Structure of cat allergen Fel d 4

Schooltink, L., Sagmeister, T., Gottstein, N., Pavkov-Keller, T., Keller, W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 89.3 kDa 
• Atom Count: 5,247 
• Modelled Residue Count: 630 
• Deposited Residue Count: 772 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Allergen Fel d 4	A, B, C, D	193	Felis catus	Mutation(s): 0
UniProt
Find proteins for Q5VFH6 (Felis catus) Explore Q5VFH6  Go to UniProtKB:  Q5VFH6

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free: 0.230 
• R-Value Work: 0.179 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.291	α = 90
b = 120.571	β = 106.513
c = 67.149	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
REFMAC	refinement
PHASER	phasing
Aimless	data scaling
XDS	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-08-16 
Deposition Author(s): Schooltink, L., Sagmeister, T., Gottstein, N., Pavkov-Keller, T., Keller, W.

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Funding Organization	Location	Grant Number
Austrian Science Fund	Austria	F04604

Revision History  

• Version 1.0: 2023-08-16
  Type: Initial release
  
• Version 1.1: 2023-09-06
  Changes: Database references, Structure summary
• Version 1.2: 2024-11-13
  Changes: Structure summary