1GHQ

CR2-C3D COMPLEX STRUCTURE

• PDB DOI: https://doi.org/10.2210/pdb1GHQ/pdb

• Classification: Immune system/viral protein receptor
• Organism(s): Homo sapiens
• Mutation(s): Yes 


• Deposited: 2001-01-11 Released: 2001-06-13 
• Deposition Author(s): Szakonyi, G., Guthridge, J.M., Li, D., Holers, V.M., Chen, X.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.04 Å
• R-Value Free: 0.239 
• R-Value Work: 0.195 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 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.

Macromolecule Content

• Total Structure Weight: 64.49 kDa 
• Atom Count: 5,132 
• Modelled Residue Count: 570 
• Deposited Residue Count: 576 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COMPLEMENT C3	A	308	Homo sapiens	Mutation(s): 1
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
CR2/CD121/C3D/EPSTEIN-BARR VIRUS RECEPTOR	B, C	134	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P20023 (Homo sapiens) Explore P20023  Go to UniProtKB:  P20023
PHAROS:  P20023 GTEx:  ENSG00000117322

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NDG	E [auth B], G [auth C]	2-acetamido-2-deoxy-alpha-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-PVFLNQBWSA-N
ZN	D [auth A], F [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.04 Å
• R-Value Free: 0.239 
• R-Value Work: 0.195 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 170	α = 90
b = 170	β = 90
c = 174	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-06-13 
Deposition Author(s): Szakonyi, G., Guthridge, J.M., Li, D., Holers, V.M., Chen, X.S.

Revision History  

• Version 1.0: 2001-06-13
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• 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: 2023-12-27
  Changes: Data collection