11CT | pdb_000011ct

Crystal structure of mouse IgG2a-Fc

• PDB DOI: https://doi.org/10.2210/pdb11CT/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2026-02-17 Released: 2026-11-11 
• Deposition Author(s): Guo, M., Yan, Z.
• Funding Organization(s): National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.21 Å
• R-Value Free: 
  0.290 (Depositor), 0.290 (DCC) 
• R-Value Work: 
  0.239 (Depositor), 0.239 (DCC) 
• R-Value Observed: 
  0.241 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of mouse IgG2a-Fc

Guo, M., Yan, Z.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

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

Macromolecule Content 

• Total Structure Weight: 75.83 kDa 
• Atom Count: 5,308 
• Modeled Residue Count: 618 
• Deposited Residue Count: 618 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ig gamma-2A chain C region, A allele	A, B, C	206	Mus musculus	Mutation(s): 0  Gene Names: Ighg
UniProt
Find proteins for P01863 (Mus musculus) Explore P01863  Go to UniProtKB:  P01863
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: P01863-1

Oligosaccharides

Help  

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	D 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	D	9		N-Glycosylation

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-alpha-D-mannopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-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	E	8		N-Glycosylation

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	D 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-(1-4)-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	9		N-Glycosylation

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.21 Å
• R-Value Free:  0.290 (Depositor), 0.290 (DCC) 
• R-Value Work:  0.239 (Depositor), 0.239 (DCC) 
• R-Value Observed: 0.241 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 135.248	α = 90
b = 98.136	β = 99.53
c = 61.922	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
xia2	data scaling
xia2	data reduction
MOLREP	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-11 
Deposition Author(s): Guo, M., Yan, Z.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	R01CA281106

Revision History  

• Version 1.0: 2026-11-11
  Type: Initial release