4GG6

Protein complex

• PDB DOI: https://doi.org/10.2210/pdb4GG6/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, Triticum aestivum
• Expression System: Trichoplusia ni, Escherichia coli
• Mutation(s): Yes 


• Deposited: 2012-08-06 Released: 2012-10-24 
• Deposition Author(s): Broughton, S.E., Theodossis, A., Petersen, J., Reid, H.H., Rossjohn, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Free: 0.285 
• R-Value Work: 0.246 
• R-Value Observed: 0.248 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A1B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A1B1C1D1E1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 198.84 kDa 
• Atom Count: 11,919 
• Modelled Residue Count: 1,573 
• Deposited Residue Count: 1,754 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HLA class II histocompatibility antigen, DQ alpha 1 chain	A, C	192	Homo sapiens	Mutation(s): 0  Gene Names: HLA-DQA1
UniProt & NIH Common Fund Data Resources
Find proteins for P01909 (Homo sapiens) Explore P01909  Go to UniProtKB:  P01909
PHAROS:  P01909 GTEx:  ENSG00000196735

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HLA class II histocompatibility antigen, DQ beta 1 chain	B, D	215	Homo sapiens	Mutation(s): 0  Gene Names: HLA-DQB, HLA-DQB1
UniProt & NIH Common Fund Data Resources
Find proteins for P01920 (Homo sapiens) Explore P01920  Go to UniProtKB:  P01920
PHAROS:  P01920

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
T-CELL RECEPTOR, SP3.4 ALPHA CHAIN	E, G	207	Homo sapiens	Mutation(s): 0
UniProt
Find proteins for K7N5N2 (Homo sapiens) Explore K7N5N2  Go to UniProtKB:  K7N5N2

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
T-CELL RECEPTOR, SP3.4 BETA CHAIN	F, H	245	Homo sapiens	Mutation(s): 0
UniProt
Find proteins for P01850 (Homo sapiens) Explore P01850  Go to UniProtKB:  P01850

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptide from Alpha/beta-gliadin MM1	I, J	18	Triticum aestivum	Mutation(s): 2
UniProt
Find proteins for P18573 (Triticum aestivum) Explore P18573  Go to UniProtKB:  P18573

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	K [auth A], L [auth A], M [auth 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: 0.285 
• R-Value Work: 0.246 
• R-Value Observed: 0.248 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.708	α = 90
b = 134.325	β = 90
c = 140.304	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-10-24 
Deposition Author(s): Broughton, S.E., Theodossis, A., Petersen, J., Reid, H.H., Rossjohn, J.

Revision History  

• Version 1.0: 2012-10-24
  Type: Initial release
  
• Version 1.1: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.2: 2022-08-24
  Changes: Database references, Structure summary
• Version 1.3: 2023-11-08
  Changes: Data collection, Refinement description