2ICF

CRIg bound to C3b

• PDB DOI: https://doi.org/10.2210/pdb2ICF/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-09-12 Released: 2006-11-07 
• Deposition Author(s): Wiesmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.10 Å
• R-Value Free: 0.330 
• R-Value Work: 0.252 
• R-Value Observed: 0.256 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 189.75 kDa 
• Atom Count: 13,236 
• Modelled Residue Count: 1,664 
• Deposited Residue Count: 1,676 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Complement C3 beta chain	A	642	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01024 (Homo sapiens) Explore P01024  Go to UniProtKB:  P01024
PHAROS:  P01024 GTEx:  ENSG00000125730

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Complement C3 alpha chain	B	915	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01024 (Homo sapiens) Explore P01024  Go to UniProtKB:  P01024
PHAROS:  P01024 GTEx:  ENSG00000125730

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
V-set and immunoglobulin domain-containing protein 4	C [auth S]	119	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y279 (Homo sapiens) Explore Q9Y279  Go to UniProtKB:  Q9Y279
PHAROS:  Q9Y279 GTEx:  ENSG00000155659

Oligosaccharides

Help

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D [auth C]	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G53755TJ GlyCosmos:  G53755TJ GlyGen:  G53755TJ

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	F [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
CA	E [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.10 Å
• R-Value Free: 0.330 
• R-Value Work: 0.252 
• R-Value Observed: 0.256 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 97.614	α = 90
b = 255.749	β = 90
c = 180.302	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-11-07 
Deposition Author(s): Wiesmann, C.

Revision History  

• Version 1.0: 2006-11-07
  Type: Initial release
  
• Version 1.1: 2008-02-06
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.3: 2013-09-18
  Changes: Derived calculations
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary