6X78 | pdb_00006x78

Vaccine-elicited mouse FP-targeting neutralizing antibody vFP48.03 in complex with HIV fusion peptide (residue 512-519)

• PDB DOI: https://doi.org/10.2210/pdb6X78/pdb

• Classification: IMMUNE SYSTEM/VIRAL PROTEIN
• Organism(s): Mus musculus, Human immunodeficiency virus 1
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2020-05-29 Released: 2021-06-02 
• Deposition Author(s): Xu, K., Kwong, P.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free: 
  0.226 (Depositor), 0.215 (DCC) 
• R-Value Work: 
  0.178 (Depositor) 
• R-Value Observed: 
  0.180 (Depositor) 

Starting Model: experimental

Literature

Distinct Classes of HIV-1 Cross-Clade Neutralizing Antibodies Targeting Fusion Peptide Elicited in Mice by Diverse Immunization Regimens

Xu, K., Kwong, P.D.

To be published.

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 and generated by PISA (software)

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 and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 100 kDa 
• Atom Count: 7,264 
• Modeled Residue Count: 887 
• Deposited Residue Count: 922 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
antibody vFP48.03 light chain	A, D [auth L]	219	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
antibody vFP48.03 heavy chain	B, C [auth H]	234	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
HIV fusion peptide 512-519 V2	E [auth G], F [auth I]	8	Human immunodeficiency virus 1	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth L]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free:  0.226 (Depositor), 0.215 (DCC) 
• R-Value Work:  0.178 (Depositor) 
• R-Value Observed: 0.180 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.993	α = 90
b = 92.733	β = 90
c = 143.424	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-06-02 
Deposition Author(s): Xu, K., Kwong, P.D.

Revision History  

• Version 1.0: 2021-06-02
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-10-16
  Changes: Structure summary