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

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

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

Zhou, F., Liu, P.P.

To be published.

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

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ozureprubart Fab heavy chain	A, D	224	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ozureprubart Fab light chain	B, E	218	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
IgE-Fc	C, F	214	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

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

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2026-02-04

Deposition Author(s):

Funding Organization	Location	Grant Number
Not funded		--

Revision History (Full details and data files)

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.