1I1A

CRYSTAL STRUCTURE OF THE NEONATAL FC RECEPTOR COMPLEXED WITH A HETERODIMERIC FC

• PDB DOI: https://doi.org/10.2210/pdb1I1A/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Rattus norvegicus
• Expression System: Cricetulus griseus
• Mutation(s): Yes 


• Deposited: 2001-01-31 Released: 2001-02-14 
• Deposition Author(s): Martin, W.L., West Jr., A.P., Gan, L., Bjorkman, P.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.292 
• R-Value Work: 0.222 
• R-Value Observed: 0.222 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A2B1C1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 98.95 kDa 
• Atom Count: 6,526 
• Modelled Residue Count: 774 
• Deposited Residue Count: 832 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NEONATAL FC RECEPTOR A	A	269	Rattus norvegicus	Mutation(s): 0
UniProt
Find proteins for P13599 (Rattus norvegicus) Explore P13599  Go to UniProtKB:  P13599

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-2-MICROGLOBULIN	B	99	Rattus norvegicus	Mutation(s): 0
UniProt
Find proteins for P07151 (Rattus norvegicus) Explore P07151  Go to UniProtKB:  P07151

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
IG GAMMA-2A CHAIN C REGION	C	225	Rattus norvegicus	Mutation(s): 0
UniProt
Find proteins for P20760 (Rattus norvegicus) Explore P20760  Go to UniProtKB:  P20760

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
IG GAMMA-2A CHAIN C REGION	D	239	Rattus norvegicus	Mutation(s): 6
UniProt
Find proteins for P20760 (Rattus norvegicus) Explore P20760  Go to UniProtKB:  P20760

Oligosaccharides

Help

Entity ID: 5
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose	E	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G86851RC GlyCosmos:  G86851RC GlyGen:  G86851RC

Entity ID: 6
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-alpha-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	F	6		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G97864SE GlyCosmos:  G97864SE GlyGen:  G97864SE

Entity ID: 7
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	G	8		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G59451NL GlyCosmos:  G59451NL GlyGen:  G59451NL

Entity ID: 8
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]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	H	8		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G80858MF GlyCosmos:  G80858MF GlyGen:  G80858MF

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	I [auth A], J [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
CYS	K [auth A], L [auth A]	CYSTEINE C3 H7 N O2 S XUJNEKJLAYXESH-REOHCLBHSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.292 
• R-Value Work: 0.222 
• R-Value Observed: 0.222 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.358	α = 90
b = 74.213	β = 90
c = 196.604	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-02-14 
Deposition Author(s): Martin, W.L., West Jr., A.P., Gan, L., Bjorkman, P.J.

Revision History  

• Version 1.0: 2001-02-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2013-09-25
  Changes: Derived calculations
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Structure summary
• Version 2.1: 2021-10-27
  Changes: Advisory, Database references, Structure summary
• Version 2.2: 2023-12-13
  Changes: Data collection, Derived calculations