8TMY

Crystal structure of SARS-CoV-2 spike stem helix peptide in complex with neutralizing antibody CHM-16

• PDB DOI: https://doi.org/10.2210/pdb8TMY/pdb

• Classification: VIRAL PROTEIN/IMMUNE SYSTEM
• Organism(s): Severe acute respiratory syndrome coronavirus 2, Macaca mulatta
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2023-07-31 Released: 2024-07-31 
• Deposition Author(s): Feng, Z., Wilson, I.A.
• Funding Organization(s): Bill & Melinda Gates Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.07 Å
• R-Value Free: 0.286 
• R-Value Work: 0.243 
• R-Value Observed: 0.246 

Starting Model: experimental

Literature

Broad Neutralizing Antibodies Against Coronaviruses.

Feng, Z., Wilson, I.A.

Not Published 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 3 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 149.81 kDa 
• Atom Count: 10,123 
• Modelled Residue Count: 1,323 
• Deposited Residue Count: 1,374 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Stem helix peptide of Spike protein S2'	A [auth M], B [auth N], C [auth S]	25	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 0
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTC2  Go to UniProtKB:  P0DTC2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Neutralizing antibody CHM-16 Heavy Chain	D [auth H], F [auth A], H [auth C]	221	Macaca mulatta	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Neutralizing antibody CHM-16 Light Chain	E [auth L], G [auth B], I [auth D]	212	Macaca mulatta	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FLC	J [auth B]	CITRATE ANION C6 H5 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.07 Å
• R-Value Free: 0.286 
• R-Value Work: 0.243 
• R-Value Observed: 0.246 
• Space Group: P 2 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.456	α = 90
b = 73.677	β = 90
c = 330.624	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-07-31 
Deposition Author(s): Feng, Z., Wilson, I.A.

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Funding Organization	Location	Grant Number
Bill & Melinda Gates Foundation	United States	INV-004923

Revision History  

• Version 1.0: 2024-07-31
  Type: Initial release
  
• Version 1.1: 2024-10-16
  Changes: Structure summary