22EA | pdb_000022ea

Cryo-EM structure of MERS-CoV S protein bound with receptor DPP4 in the conformation 3 (3 up RBD and 3 DPP4 bound).

PDB DOI: https://doi.org/10.2210/pdb22EA/pdb
EM Map EMD-68191: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Homo sapiens, Betacoronavirus England 1
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2026-01-07 Released: 2026-09-02
Deposition Author(s): Wang, Y.J., Sun, L.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.44 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 22EA

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

Literature

Cryo-EM structure of MERS-CoV S protein bound with receptor DPP4 in the conformation 3 (3 up RBD and 3 DPP4 bound).

Wang, Y.J., Sun, L.

To be published.

Macromolecule Content

Total Structure Weight: 991.03 kDa
Atom Count: 63,774
Modeled Residue Count: 7,989
Deposited Residue Count: 8,766
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dipeptidyl peptidase 4 membrane form	A [auth D] B [auth E] D [auth F] E [auth G] G [auth A] A [auth D], B [auth E], D [auth F], E [auth G], G [auth A], H [auth B]	791	Homo sapiens	Mutation(s): 0 Gene Names: DPP4, ADCP2, CD26 EC: 3.4.14.5
UniProt & NIH Common Fund Data Resources
Find proteins for P27487 (Homo sapiens) Explore P27487 Go to UniProtKB: P27487
PHAROS: P27487 GTEx: ENSG00000197635
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P27487
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike glycoprotein	C [auth H], F [auth I], I [auth C]	1,340	Betacoronavirus England 1	Mutation(s): 0 Gene Names: S, 3
UniProt
Find proteins for K9N5Q8 (Middle East respiratory syndrome-related coronavirus (isolate United Kingdom/H123990006/2012)) Explore K9N5Q8 Go to UniProtKB: K9N5Q8
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	K9N5Q8
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.44 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.17.1_3660
RECONSTRUCTION	cryoSPARC

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-09-02

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	92469108

Revision History (Full details and data files)

Version 1.0: 2026-09-02
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.