9W6A | pdb_00009w6a

Crystal structure of 18-3 TCR in complex with HLA-A*11:01 bound to HPV16-E6(93-101)

PDB DOI: https://doi.org/10.2210/pdb9W6A/pdb

Classification: IMMUNE SYSTEM
Organism(s): Homo sapiens, Human papillomavirus 16, Mus musculus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2025-08-03 Released: 2026-08-05
Deposition Author(s): Wang, J., Tan, S.G., Chai, Y., Tang, L.F.
Funding Organization(s): National Natural Science Foundation of China (NSFC), Chinese Academy of Sciences

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.35 Å
R-Value Free:
0.238 (Depositor), 0.234 (DCC)
R-Value Work:
0.195 (Depositor), 0.195 (DCC)
R-Value Observed:
0.197 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Harnessing CD8 co-receptor dependency of HPV-E6 specific TCR for tumor immunotherapy

Wang, J., Tan, S.G., Chai, Y., Tang, L.F.

To be published.

Macromolecule Content

Total Structure Weight: 94.17 kDa
Atom Count: 6,792
Modeled Residue Count: 825
Deposited Residue Count: 826
Unique protein chains: 5

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MHC class I antigen	A [auth C]	275	Homo sapiens	Mutation(s): 0 Gene Names: HLA-A
UniProt
Find proteins for A0A6M6CC39 (Homo sapiens) Explore A0A6M6CC39 Go to UniProtKB: A0A6M6CC39
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	A0A6M6CC39
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-2-microglobulin	B [auth D]	99	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 Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P61769
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein E6	C [auth E]	9	Human papillomavirus 16	Mutation(s): 0
UniProt
Find proteins for P03126 (Human papillomavirus type 16) Explore P03126 Go to UniProtKB: P03126
Entity Groups
UniProt Group	P03126
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
18-3 TCR alpha chain	D [auth A]	201	Mus musculus	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
18-3 TCR beta chain	E [auth B]	242	Mus musculus	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.35 Å
R-Value Free: 0.238 (Depositor), 0.234 (DCC)
R-Value Work: 0.195 (Depositor), 0.195 (DCC)
R-Value Observed: 0.197 (Depositor)

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 138.939	α = 90
b = 65.266	β = 118.79
c = 130.709	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data scaling
Coot	model building

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-08-05

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	92169208
National Natural Science Foundation of China (NSFC)	China	32222031
Chinese Academy of Sciences	China	YSBR-083