8U4Q

Structure of REGN7663 Fab-bound CXCR4/Gi complex

• PDB DOI: https://doi.org/10.2210/pdb8U4Q/pdb
• EM Map EMD-41891: EMDB EMDataResource

• Classification: SIGNALING PROTEIN/IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Cricetulus griseus, Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2023-09-11 Released: 2024-03-13 
• Deposition Author(s): Saotome, K., McGoldrick, L.L., Franklin, M.C.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.36 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural insights into CXCR4 modulation and oligomerization

Saotome, K., McGoldrick, L.L., Ho, J., Ramlall, T., Shah, S., Moore, M.J., Kim, J.H., Leidich, R., Olson, W.C., Franklin, M.C.

(2024) Biorxiv 

• DOI: https://doi.org/10.1101/2024.02.09.579708

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A1B1C1D1E1F1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 6-mer - A2B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 209.42 kDa 
• Atom Count: 10,409 
• Modelled Residue Count: 1,339 
• Deposited Residue Count: 1,877 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
REGN7663 Fab light chain	A [auth L]	219	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
REGN7663 Fab heavy chain	B [auth H]	240	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
C-X-C chemokine receptor type 4	C [auth R]	632	Homo sapiens	Mutation(s): 0  Gene Names: CXCR4
UniProt & NIH Common Fund Data Resources
Find proteins for P61073 (Homo sapiens) Explore P61073  Go to UniProtKB:  P61073
PHAROS:  P61073 GTEx:  ENSG00000121966

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(i) subunit alpha-1	D [auth A]	365	Homo sapiens	Mutation(s): 0  Gene Names: GNAI1
UniProt & NIH Common Fund Data Resources
Find proteins for P63096 (Homo sapiens) Explore P63096  Go to UniProtKB:  P63096
PHAROS:  P63096 GTEx:  ENSG00000127955

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	E [auth B]	350	Homo sapiens	Mutation(s): 0  Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens) Explore P62873  Go to UniProtKB:  P62873
PHAROS:  P62873 GTEx:  ENSG00000078369

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	F [auth C]	71	Homo sapiens	Mutation(s): 0  Gene Names: GNG2
UniProt & NIH Common Fund Data Resources
Find proteins for P59768 (Homo sapiens) Explore P59768  Go to UniProtKB:  P59768
PHAROS:  P59768 GTEx:  ENSG00000186469

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CLR	G [auth R]	CHOLESTEROL C27 H46 O HVYWMOMLDIMFJA-DPAQBDIFSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.36 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-13 
Deposition Author(s): Saotome, K., McGoldrick, L.L., Franklin, M.C.

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Funding Organization	Location	Grant Number
Not funded	United States	--

Revision History  

• Version 1.0: 2024-03-13
  Type: Initial release