9UEP | pdb_00009uep

The structure of FIPV RBD and cat APN complex

PDB DOI: https://doi.org/10.2210/pdb9UEP/pdb
EM Map EMD-64088: EMDB EMDataResource

Classification: PROTEIN BINDING
Organism(s): Feline infectious peritonitis virus (strain 79-1146), Felis catus
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2025-04-09 Released: 2026-01-07
Deposition Author(s): Sun, J.Q.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.85 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

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

Literature

The structure of FIPV RBD and cat APN complex

Sun, J.Q.

To be published.

Macromolecule Content

Total Structure Weight: 127.55 kDa
Atom Count: 8,514
Modeled Residue Count: 1,049
Deposited Residue Count: 1,106
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike glycoprotein	A	174	Feline infectious peritonitis virus (strain 79-1146)	Mutation(s): 0 Gene Names: S, 2
UniProt
Find proteins for P10033 (Feline coronavirus (strain FIPV WSU-79/1146)) Explore P10033 Go to UniProtKB: P10033
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P10033
Glycosylation
Glycosylation Sites: 1	Glycosylation Focus chain A
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Aminopeptidase N	B [auth C]	932	Felis catus	Mutation(s): 0 Gene Names: ANPEP, APN EC: 3.4.11.2
UniProt
Find proteins for P79171 (Felis catus) Explore P79171 Go to UniProtKB: P79171
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P79171
Glycosylation
Glycosylation Sites: 6	Glycosylation Focus chain B [auth C]
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C [auth B]	4		N-Glycosylation	Interactions Focus chain C [auth B] Interactions & Density Focus chain C [auth B]
Glycosylation Resources
GlyTouCan: G32152BH GlyCosmos: G32152BH GlyGen: G32152BH

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D, E	2		N-Glycosylation	Interactions Focus chain D Focus chain E Interactions & Density Focus chain D Focus chain E
Glycosylation Resources
GlyTouCan: G42666HT GlyCosmos: G42666HT GlyGen: G42666HT

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAG (Subject of Investigation/LOI) Query on NAG Download:Ideal Coordinates CCD File SDF format, chain I [auth C] SDF format, chain H [auth C] SDF format, chain G [auth C] SDF format, chain F [auth A] MOL2 format, chain I [auth C] MOL2 format, chain H [auth C] MOL2 format, chain G [auth C] MOL2 format, chain F [auth A] mmCIF format, chain I [auth C] mmCIF format, chain H [auth C] mmCIF format, chain G [auth C] mmCIF format, chain F [auth A]	F [auth A], G [auth C], H [auth C], I [auth C]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain F [auth A] Focus chain G [auth C] Focus chain H [auth C] Focus chain I [auth C] Interactions & Density Focus chain F [auth A] Focus chain G [auth C] Focus chain H [auth C] Focus chain I [auth C]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.85 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-01-07

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32270157

Revision History (Full details and data files)

Version 1.0: 2026-01-07
Type: Initial release

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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.