9GW5 | pdb_00009gw5

type-I interferon autoantibodies pmab3, pmab19 and pmab14 in complex with Interferon alpha-2

• PDB DOI: https://doi.org/10.2210/pdb9GW5/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Drosophila melanogaster
• Mutation(s): No 


• Deposited: 2024-09-26 Released: 2025-10-08 
• Deposition Author(s): Duquerroy, S., Rey, F., Mahevas, M., Chappert, P., Ahouzi, O.
• Funding Organization(s): French National Research Agency, National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), Fondation pour la Recherche Medicale (FRM)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.00 Å
• R-Value Free: 
  0.324 (Depositor), 0.314 (DCC) 
• R-Value Work: 
  0.294 (Depositor), 0.286 (DCC) 
• R-Value Observed: 
  0.296 (Depositor) 

Starting Models: experimental, in silico

Literature

Temporal and structural insights into type-I interferons autoantibodies in severe COVID-19

Vanderkerken, M., Fournier, M., Dorgham, K., Bastard, P., Ahouzi, O., Duquerroy, S., Nguyen, N.K., Broutin, M., Charlet, M., Vandenberghe, A., Bizien, L., Da Mata-Jardin, O., Haouz, A., Belmondo, T., Hue, S., Borghesi, A., Rodriguez-Gallego, C., Vinh, D., Andreakos, V., Haerynck, F., Halwani, R., Hammerstrom, T.Q.P., Bjorkstrom, N., Strunz, B., Mogensen, T., Trouillet, S., Neven, B., Levy, R., Le Voyer, T., Delmonte, O., O'Farrelly, C., Riviere, J., Amador Borrero, B., Servettaz, A., Crickx, E., Michel, M., Puel, A., Abel, L., Luyt, C.E., Mathian, A., Amoura, Z., weill, J.C., Casanova, J.L., Rey, F.A., Gorochov, G., Chappert, P., Mahevas, M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A1B1C1D1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A3B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: homology

Macromolecule Content 

• Total Structure Weight: 111.84 kDa 
• Atom Count: 6,368 
• Modeled Residue Count: 830 
• Deposited Residue Count: 1,051 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Interferon alpha-2	A	188	Homo sapiens	Mutation(s): 0  Gene Names: IFNA2, IFNA2A, IFNA2B, IFNA2C
UniProt & NIH Common Fund Data Resources
Find proteins for P01563 (Homo sapiens) Explore P01563  Go to UniProtKB:  P01563
PHAROS:  P01563 GTEx:  ENSG00000188379

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
type-I interferons autoantibody pamb14 heavy chain	B [auth H]	290	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
scFv type-I interferons autoantibody pamb03	C [auth U]	288	Homo sapiens	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
scFv type-I interferons autoantibody pamb19	D [auth V]	285	Homo sapiens	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.00 Å
• R-Value Free:  0.324 (Depositor), 0.314 (DCC) 
• R-Value Work:  0.294 (Depositor), 0.286 (DCC) 
• R-Value Observed: 0.296 (Depositor) 

Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 166.216	α = 90
b = 166.216	β = 90
c = 190.135	γ = 120

Software Package:

Software Name	Purpose
BUSTER	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing
autoPROC	data processing
STARANISO	data scaling

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-10-08 
Deposition Author(s): Duquerroy, S., Rey, F., Mahevas, M., Chappert, P., Ahouzi, O.

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Funding Organization	Location	Grant Number
French National Research Agency	France	ANR-22-CE15-0047-01
French National Research Agency	France	ANR-24-CHBS-0003
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI088364
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI163029
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R21AI160576
French National Research Agency	France	ANR-10-IAHU-01
French National Research Agency	France	ANR-10-LABX-62-IBEID
Fondation pour la Recherche Medicale (FRM)	France	EQU201903007798
French National Research Agency	France	ANR-20-CE93-003
French National Research Agency	France	ANR-21-LIBA-0002
French National Research Agency	France	ANR-21-RHUS-08

Revision History  

• Version 1.0: 2025-10-08
  Type: Initial release