Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 2 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 143.3 kDa 
• Atom Count: 9,866 
• Modelled Residue Count: 1,221 
• Deposited Residue Count: 1,286 
• Unique protein chains: 3

 8BE1

SARS-CoV-2 RBD in complex with a Fab fragment of a neutralising antibody mRBD2

• PDB DOI:  https://doi.org/10.2210/pdb8BE1/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus, Severe acute respiratory syndrome coronavirus 2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-10-21 Released: 2023-01-25 
• Deposition Author(s): Lulla, A., Brear, P., Fischer, K., Hollfelder, F., Hyvonen, M.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.98 Å
• R-Value Free: 0.284 
• R-Value Work: 0.247 
• R-Value Observed: 0.249 

Literature

Microfluidics-enabled fluorescence-activated cell sorting of single pathogen-specific antibody secreting cells for the rapid discovery of monoclonal antibodies

Fischer, K., Lulla, A., So, T.Y., Pereyra-Gerber, P., Raybould, M.I.J., Kohler, T.N., Kaminski, T.S., Yam-Puc, J.C., Hughes, R., Leiss-Maier, F., Brear, P., Matheson, N.J., Deane, C.M., Hyvonen, M., Thaventhiran, J.E.D., Hollfelder, F.

(2023) Biorxiv 

• DOI: https://doi.org/10.1101/2023.01.10.523494

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antibody heavy chain	A, D	230	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Antibody light chain	B, E	215	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike protein S1	C, F	198	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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth A], H [auth A], I [auth B], J [auth B], K [auth C], L [auth C], M [auth D], N [auth D], O [auth D], P [auth D], Q [auth D], R [auth E], S [auth E], T [auth E], U [auth F], V [auth F], W [auth F]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.98 Å
• R-Value Free: 0.284 
• R-Value Work: 0.247 
• R-Value Observed: 0.249 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.47	α = 90
b = 194.62	β = 97.16
c = 62.09	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
xia2	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-01-25 
Deposition Author(s): Lulla, A., Brear, P., Fischer, K., Hollfelder, F., Hyvonen, M.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-01-25
  Type: Initial release