4C55

Crystal structure of serum-derived human IgG4 Fc

• PDB DOI: https://doi.org/10.2210/pdb4C55/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2013-09-10 Released: 2013-11-13 
• Deposition Author(s): Davies, A.M., Rispens, T., Ooijevaar-deHeer, P., Gould, H.J., Jefferis, R., Aalberse, R.C., Sutton, B.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.238 
• R-Value Work: 0.188 
• R-Value Observed: 0.190 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 52.97 kDa 
• Atom Count: 3,499 
• Modelled Residue Count: 414 
• Deposited Residue Count: 436 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
IG GAMMA-4 CHAIN C REGION	A, B	218	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01861 (Homo sapiens) Explore P01861  Go to UniProtKB:  P01861
PHAROS:  P01861 GTEx:  ENSG00000211892

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-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	C	9		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G27919IH GlyCosmos:  G27919IH GlyGen:  G27919IH

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D	8		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G89993FE GlyCosmos:  G89993FE GlyGen:  G89993FE

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	E [auth A], H [auth B]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
EDO	F [auth A], G [auth A], I [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.238 
• R-Value Work: 0.188 
• R-Value Observed: 0.190 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.298	α = 90
b = 80.738	β = 90
c = 99.19	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-11-13 
Deposition Author(s): Davies, A.M., Rispens, T., Ooijevaar-deHeer, P., Gould, H.J., Jefferis, R., Aalberse, R.C., Sutton, B.J.

Revision History  

• Version 1.0: 2013-11-13
  Type: Initial release
  
• Version 1.1: 2013-11-20
  Changes: Database references
• Version 1.2: 2014-02-05
  Changes: Database references
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2023-12-20
  Changes: Data collection, Database references, Refinement description, Structure summary