6IFJ

Structure of bispecific Fc

• PDB DOI: https://doi.org/10.2210/pdb6IFJ/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2018-09-20 Released: 2019-09-25 
• Deposition Author(s): Qian, X., Lescar, J., Sasisekahran, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.231 
• R-Value Work: 0.171 
• R-Value Observed: 0.174 

Starting Model: experimental

Literature

Structure of bsfc at 2.4 Angstroms resolution

Qian, X., Lescar, J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

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

Macromolecule Content

• Total Structure Weight: 58.33 kDa 
• Atom Count: 4,125 
• Modelled Residue Count: 445 
• Deposited Residue Count: 490 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Immunoglobulin gamma-1 heavy chain	A	232	Homo sapiens	Mutation(s): 2
UniProt
Find proteins for P0DOX5 (Homo sapiens) Explore P0DOX5  Go to UniProtKB:  P0DOX5
Glycosylation
Glycosylation Sites: 1

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Immunoglobulin gamma-1 heavy chain	B	232	Homo sapiens	Mutation(s): 1
UniProt
Find proteins for P0DOX5 (Homo sapiens) Explore P0DOX5  Go to UniProtKB:  P0DOX5
Glycosylation
Glycosylation Sites: 1

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
13-mer peptide	C, D	13	synthetic construct	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	E, F	7		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G45889JQ GlyCosmos:  G45889JQ GlyGen:  G45889JQ

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	G [auth A], H [auth A], I [auth A], J [auth B], K [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.231 
• R-Value Work: 0.171 
• R-Value Observed: 0.174 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.66	α = 90
b = 67.26	β = 106.23
c = 78.73	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-09-25 
Deposition Author(s): Qian, X., Lescar, J., Sasisekahran, R.

Revision History  

• Version 1.0: 2019-09-25
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-11-22
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary