22PS | pdb_000022ps

Structure of ozureprubart Fab in complex with human IgE-Fc

• PDB DOI: https://doi.org/10.2210/pdb22PS/pdb
• EM Map EMD-68593: EMDB EMDataResource

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


• Deposited: 2026-01-20 Released: 2026-02-04 
• Deposition Author(s): Zhou, F., Liu, P.P.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.96 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Ozureprubart: Mechanistic and Functional Insights into a Long-Acting Anti-IgE Therapy

Zhou, F., Liu, P.P.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A2B2C2 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Hetero 6-mer - A4B2 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 143.57 kDa 
• Atom Count: 6,156 
• Modeled Residue Count: 786 
• Deposited Residue Count: 1,312 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ozureprubart Fab heavy chain	A, D	224	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ozureprubart Fab light chain	B, E	218	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
IgE-Fc	C, F	214	Homo sapiens	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.96 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-02-04 
Deposition Author(s): Zhou, F., Liu, P.P.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-02-04
  Type: Initial release