9YVI | pdb_00009yvi

Cryo-EM structure of BA.5 spike in complex with S22

PDB DOI: https://doi.org/10.2210/pdb9YVI/pdb
EM Map EMD-73525: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Severe acute respiratory syndrome coronavirus 2
Expression System: Homo
Mutation(s): No

Deposited: 2025-10-23 Released: 2026-08-26
Deposition Author(s): Mou, H., Gao, B., Ye, G., Bu, F., Zhang, L., Farzan, M., Li, F., Choe, H.
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.66 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9YVI

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

Literature

A SARS-CoV-2 entry inhibitor trimerizes to lock the spike trimer in its closed conformation

Mou, H., Gao, B., Ye, G., Bu, F., Zhang, L., Farzan, M., Li, F., Choe, H.

To be published.

Macromolecule Content

Total Structure Weight: 424.71 kDa
Atom Count: 25,999
Modeled Residue Count: 3,267
Deposited Residue Count: 3,756
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike glycoprotein	A, B, C	1,252	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 0 Gene Names: S, 2
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTC2 Go to UniProtKB: P0DTC2
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P0DTC2
Glycosylation
Glycosylation Sites: 9	Glycosylation Focus chain A Focus chain B Focus chain C	Go to GlyGen: P0DTC2-1
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

Entity ID: 2
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 [auth G], E [auth M]	2		N-Glycosylation	Interactions Focus chain D [auth G] Focus chain E [auth M] Interactions & Density Focus chain D [auth G] Focus chain E [auth M]

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1CZB Query on A1CZB Download:Ideal Coordinates CCD File SDF format, chain N [auth A] SDF format, chain W [auth B] SDF format, chain X [auth B] MOL2 format, chain N [auth A] MOL2 format, chain W [auth B] MOL2 format, chain X [auth B] mmCIF format, chain N [auth A] mmCIF format, chain W [auth B] mmCIF format, chain X [auth B]	N [auth A], W [auth B], X [auth B]	N-{4-[(5-ethyl-1,3,4-thiadiazol-2-yl)sulfamoyl]phenyl}naphthalene-1-carboxamide C₂₁ H₁₈ N₄ O₃ S₂ HJZPZKJJQGFFBQ-UHFFFAOYSA-N		Interactions Focus chain N [auth A] Focus chain W [auth B] Focus chain X [auth B] Interactions & Density Focus chain N [auth A] Focus chain W [auth B] Focus chain X [auth B]
NAG (Subject of Investigation/LOI) Query on NAG Download:Ideal Coordinates CCD File SDF format, chain AA [auth C] SDF format, chain BA [auth C] SDF format, chain CA [auth C] SDF format, chain DA [auth C] SDF format, chain EA [auth C] SDF format, chain F [auth A] SDF format, chain FA [auth C] SDF format, chain G [auth A] SDF format, chain GA [auth C] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth A] SDF format, chain O [auth B] SDF format, chain P [auth B] SDF format, chain Q [auth B] SDF format, chain R [auth B] SDF format, chain S [auth B] SDF format, chain T [auth B] SDF format, chain U [auth B] SDF format, chain V [auth B] SDF format, chain Y [auth C] SDF format, chain Z [auth C] MOL2 format, chain AA [auth C] MOL2 format, chain BA [auth C] MOL2 format, chain CA [auth C] MOL2 format, chain DA [auth C] MOL2 format, chain EA [auth C] MOL2 format, chain F [auth A] MOL2 format, chain FA [auth C] MOL2 format, chain G [auth A] MOL2 format, chain GA [auth C] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A] MOL2 format, chain O [auth B] MOL2 format, chain P [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain R [auth B] MOL2 format, chain S [auth B] MOL2 format, chain T [auth B] MOL2 format, chain U [auth B] MOL2 format, chain V [auth B] MOL2 format, chain Y [auth C] MOL2 format, chain Z [auth C] mmCIF format, chain AA [auth C] mmCIF format, chain BA [auth C] mmCIF format, chain CA [auth C] mmCIF format, chain DA [auth C] mmCIF format, chain EA [auth C] mmCIF format, chain F [auth A] mmCIF format, chain FA [auth C] mmCIF format, chain G [auth A] mmCIF format, chain GA [auth C] mmCIF format, chain H [auth A] mmCIF format, chain I [auth A] mmCIF format, chain J [auth A] mmCIF format, chain K [auth A] mmCIF format, chain L [auth A] mmCIF format, chain M [auth A] mmCIF format, chain O [auth B] mmCIF format, chain P [auth B] mmCIF format, chain Q [auth B] mmCIF format, chain R [auth B] mmCIF format, chain S [auth B] mmCIF format, chain T [auth B] mmCIF format, chain U [auth B] mmCIF format, chain V [auth B] mmCIF format, chain Y [auth C] mmCIF format, chain Z [auth C]	AA [auth C] BA [auth C] CA [auth C] DA [auth C] EA [auth C] AA [auth C], BA [auth C], CA [auth C], DA [auth C], EA [auth C], F [auth A], FA [auth C], G [auth A], GA [auth C], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], O [auth B], P [auth B], Q [auth B], R [auth B], S [auth B], T [auth B], U [auth B], V [auth B], Y [auth C], Z [auth C]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain AA [auth C] Focus chain BA [auth C] Focus chain CA [auth C] Focus chain DA [auth C] Focus chain EA [auth C] Focus chain F [auth A] Focus chain FA [auth C] Focus chain G [auth A] Focus chain GA [auth C] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain O [auth B] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B] Focus chain Y [auth C] Focus chain Z [auth C] Interactions & Density Focus chain AA [auth C] Focus chain BA [auth C] Focus chain CA [auth C] Focus chain DA [auth C] Focus chain EA [auth C] Focus chain F [auth A] Focus chain FA [auth C] Focus chain G [auth A] Focus chain GA [auth C] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain O [auth B] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B] Focus chain Y [auth C] Focus chain Z [auth C]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.66 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.5.1
MODEL REFINEMENT	PHENIX	1.16

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-08-26

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	U19AI171954

Revision History (Full details and data files)

Version 1.0: 2026-08-26
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.