Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 118.84 kDa 
• Atom Count: 8087 
• Residue Count: 1031 
• Unique protein chains: 3

6ARU

Structure of Cetuximab Fab mutant in complex with EGFR extracellular domain

• DOI: 10.2210/pdb6ARU/pdb

• Classification: TRANSFERASE/IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2017-08-23 Released: 2018-08-29 
• Deposition Author(s): Christie, M., Christ, D.
• Funding Organization(s): Australian Research Council (ARC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Free: 0.267 
• R-Value Work: 0.232 
• R-Value Observed: 0.234 

Literature

Structure of Cetuximab Fab mutant in complex with EGFR extracellular domain

Christie, M., Christ, D.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Epidermal growth factor receptor	A	622	Homo sapiens	Mutation(s): 0  Gene Names: EGFR, ERBB, ERBB1, HER1 EC: 2.7.10.1
Find proteins for P00533 (Homo sapiens) Explore P00533  Go to UniProtKB:  P00533
NIH Common Fund Data Resources
PHAROS  P00533 GTEx  ENSG00000146648

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cetuximab mutant light chain,Uncharacterized protein	B	214	Homo sapiens	Mutation(s): 0
Find proteins for Q8TCD0 (Homo sapiens) Explore Q8TCD0  Go to UniProtKB:  Q8TCD0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Cetuximab mutant heavy chain Fab fragment,Immunoglobulin gamma-1 heavy chain	C	222	Homo sapiens	Mutation(s): 0
Find proteins for P0DOX5 (Homo sapiens) Explore P0DOX5  Go to UniProtKB:  P0DOX5

Oligosaccharides

Help

Entity ID: 4
Molecule	Chains	Chain Length	2D Diagram	Glycosylation
alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]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

Entity ID: 5
Molecule	Chains	Chain Length	2D Diagram	Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	E	2		N-Glycosylation

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	A, C	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Free: 0.267 
• R-Value Work: 0.232 
• R-Value Observed: 0.234 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.495	α = 90
b = 70.444	β = 100.95
c = 149.079	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-08-23 
• Released Date: 2018-08-29 
Deposition Author(s): Christie, M., Christ, D.

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Funding Organization	Location	Grant Number
Australian Research Council (ARC)	Australia	DE160100608
Australian Research Council (ARC)	Australia	DP160104915

Revision History 

• Version 1.0: 2018-08-29
  Type: Initial release
  
• Version 1.1: 2020-01-01
  Changes: Author supporting evidence
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary