8U29

Prefusion structure of the PRD-0038 spike glycoprotein ectodomain trimer


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Broad receptor tropism and immunogenicity of a clade 3 sarbecovirus.

Lee, J.Zepeda, S.K.Park, Y.J.Taylor, A.L.Quispe, J.Stewart, C.Leaf, E.M.Treichel, C.Corti, D.King, N.P.Starr, T.N.Veesler, D.

(2023) Cell Host Microbe 31: 1961-1973.e11

  • DOI: https://doi.org/10.1016/j.chom.2023.10.018
  • Primary Citation of Related Structures:  
    8U0T, 8U29

  • PubMed Abstract: 

    Although Rhinolophus bats harbor diverse clade 3 sarbecoviruses, the structural determinants of receptor tropism along with the antigenicity of their spike (S) glycoproteins remain uncharacterized. Here, we show that the African Rhinolophus bat clade 3 sarbecovirus PRD-0038 S has a broad angiotensin-converting enzyme 2 (ACE2) usage and that receptor-binding domain (RBD) mutations further expand receptor promiscuity and enable human ACE2 utilization. We determine a cryo-EM structure of the PRD-0038 RBD bound to Rhinolophus alcyone ACE2, explaining receptor tropism and highlighting differences with SARS-CoV-1 and SARS-CoV-2. Characterization of PRD-0038 S using cryo-EM and monoclonal antibody reactivity reveals its distinct antigenicity relative to SARS-CoV-2 and identifies PRD-0038 cross-neutralizing antibodies for pandemic preparedness. PRD-0038 S vaccination elicits greater titers of antibodies cross-reacting with vaccine-mismatched clade 2 and clade 1a sarbecoviruses compared with SARS-CoV-2 S due to broader antigenic targeting, motivating the inclusion of clade 3 antigens in next-generation vaccines for enhanced resilience to viral evolution.


  • Organizational Affiliation

    Department of Biochemistry, University of Washington, Seattle, WA, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PRD-0038 Spike glycoprotein
A, B, C
1,280Sarbecovirus sp.Mutation(s): 0 
UniProt
Find proteins for A0A8B6QN60 (Bat coronavirus)
Explore A0A8B6QN60 
Go to UniProtKB:  A0A8B6QN60
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A8B6QN60
Glycosylation
Glycosylation Sites: 21
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseAA [auth a],
G,
Q
4N-Glycosylation
Glycosylation Resources
GlyTouCan:  G81315DD
GlyCosmos:  G81315DD
GlyGen:  G81315DD
Entity ID: 4
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseBA [auth b],
H,
R
6N-Glycosylation
Glycosylation Resources
GlyTouCan:  G56014GC
GlyCosmos:  G56014GC
GlyGen:  G56014GC
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
AB [auth B]
BB [auth B]
CB [auth B]
DB [auth C]
EB [auth C]
AB [auth B],
BB [auth B],
CB [auth B],
DB [auth C],
EB [auth C],
FB [auth C],
GB [auth C],
HA [auth A],
HB [auth C],
IA [auth A],
IB [auth C],
JA [auth A],
JB [auth C],
KA [auth A],
KB [auth C],
LA [auth A],
LB [auth C],
MA [auth A],
MB [auth C],
NA [auth A],
NB [auth C],
OA [auth A],
PA [auth A],
QA [auth A],
RA [auth A],
SA [auth B],
TA [auth B],
UA [auth B],
VA [auth B],
WA [auth B],
XA [auth B],
YA [auth B],
ZA [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI158186

Revision History  (Full details and data files)

  • Version 1.0: 2023-12-06
    Type: Initial release
  • Version 2.0: 2023-12-27
    Type: Coordinate replacement
    Reason: Polymer backbone linkage
    Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Structure summary