8ENH

Cross-reactive 3180 TCR recognition of HLA-B*35:01-NP7 epitope from 2002 H3N2 influenza strain

• PDB DOI: https://doi.org/10.2210/pdb8ENH/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, Influenza A virus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-09-30 Released: 2024-03-27 
• Deposition Author(s): Littler, D.R., Rossjohn, J.
• Funding Organization(s): Australian Research Council (ARC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.230 
• R-Value Work: 0.191 
• R-Value Observed: 0.193 

Literature

Molecular determinants of cross-strain influenza A virus recognition by T-cell receptors

Quinones-Parra, S.M., Littler, D.R., Rossjohn, J., Kedzierska, K.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 380.84 kDa 
• Atom Count: 27,676 
• Modelled Residue Count: 3,298 
• Deposited Residue Count: 3,348 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MHC class I antigen	A, F, K, P	276	Homo sapiens	Mutation(s): 0  Gene Names: HLA-B
UniProt
Find proteins for F4NBT2 (Homo sapiens) Explore F4NBT2  Go to UniProtKB:  F4NBT2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-2-microglobulin	B, G, L, Q	100	Homo sapiens	Mutation(s): 0  Gene Names: B2M, CDABP0092, HDCMA22P
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens) Explore P61769  Go to UniProtKB:  P61769
PHAROS:  P61769 GTEx:  ENSG00000166710

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Nucleoprotein NP7 epitope	C, H, M, R	9	Influenza A virus	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
3180 TCR alpha chain	D, I, N, S	206	Homo sapiens	Mutation(s): 0  Gene Names: TRAV13

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
3180 TCR alpha chain	E, J, O, T	246	Homo sapiens	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.230 
• R-Value Work: 0.191 
• R-Value Observed: 0.193 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 168.15	α = 90
b = 79.55	β = 95.56
c = 172.19	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-27 
Deposition Author(s): Littler, D.R., Rossjohn, J.

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

Revision History  

• Version 1.0: 2024-03-27
  Type: Initial release