Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - ABCD 

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

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Hetero 8-mer - A2B2C2D2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 95026.00 
• Atom Count: 5674 
• Residue Count: 833 
• Unique protein chains: 5

1AO7

COMPLEX BETWEEN HUMAN T-CELL RECEPTOR, VIRAL PEPTIDE (TAX), AND HLA-A 0201

• DOI: 10.2210/pdb1AO7/pdb

• Classification: COMPLEX (MHC/VIRAL PEPTIDE/RECEPTOR)
• Organism(s): Human T-cell leukemia virus 1 (isolate Caribbea HS-35 subtype A), Homo sapiens
• Expression System: Escherichia coli BL21(DE3), Escherichia coli


• Deposited: 1997-07-21 Released: 1997-09-17 
• Deposition Author(s): Garboczi, D.N., Ghosh, P., Utz, U., Fan, Q.R., Biddison, W.E., Wiley, D.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.320 
• R-Value Work: 0.245 

Literature

Structure of the complex between human T-cell receptor, viral peptide and HLA-A2.

Garboczi, D.N., Ghosh, P., Utz, U., Fan, Q.R., Biddison, W.E., Wiley, D.C.

(1996) Nature 384: 134-141

• PubMed: 8906788 
• DOI: 10.1038/384134a0


• PubMed Abstract: 
  

Recognition by a T-cell antigen receptor (TCR) of peptide complexed with a major histocompatibility complex (MHC) molecule occurs through variable loops in the TCR structure which bury almost all the available peptide and a much larger area of the MHC molecule. The TCR fits diagonally across the MHC peptide-binding site in a surface feature common to all class I and class II MHC molecules, providing evidence that the nature of binding is general. A broadly applicable binding mode has implications for the mechanism of repertoire selection and the magnitude of alloreactions.

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Related Citations: 

• Assembly, Specific Binding, and Crystallization of a Human Tcr-Alphabeta with an Antigenic Tax Peptide from Human T Lymphotropic Virus Type 1 and the Class I Mhc Molecule Hla-A2
  Garboczi, D.N.,Utz, U.,Ghosh, P.,Seth, A.,Kim, J.,Vantienhoven, E.A.,Biddison, W.E.,Wiley, D.C.
  (1996) J.Immunol. 157: 5403




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Organizational Affiliation: 

Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
HLA-A 0201	A	275	Homo sapiens	Mutation(s): 0  Gene Names: HLA-A (HLAA)
Find proteins for P04439 (Homo sapiens) Go to Gene View: HLA-A Go to UniProtKB:  P04439

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
BETA-2 MICROGLOBULIN	B	100	Homo sapiens	Mutation(s): 0  Gene Names: B2M
Find proteins for P61769 (Homo sapiens) Go to Gene View: B2M Go to UniProtKB:  P61769

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
TAX PEPTIDE	C	9	Human T-cell leukemia virus 1 (isolate Caribbea HS-35 subtype A)	Mutation(s): 0  Gene Names: tax
Find proteins for P14079 (Human T-cell leukemia virus 1 (isolate Caribbea HS-35 subtype A)) Go to UniProtKB:  P14079

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details
T CELL RECEPTOR ALPHA	D	204	Homo sapiens	Mutation(s): 0  Gene Names: TRAV12-2, TRAC (TCRA)
Find proteins for A0A075B6T6 (Homo sapiens) Go to UniProtKB:  A0A075B6T6
Find proteins for P01848 (Homo sapiens) Go to UniProtKB:  P01848

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details
T CELL RECEPTOR BETA	E	245	Homo sapiens	Mutation(s): 0  Gene Names: TRBV6-5, TRBC2 (TCRBC2)
Find proteins for A0A0K0K1A5 (Homo sapiens) Go to UniProtKB:  A0A0K0K1A5
Find proteins for A0A5B9 (Homo sapiens) Go to UniProtKB:  A0A5B9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
EMC	B	ETHYL MERCURY ION C2 H5 Hg MJOUBOKSWBMNGQ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.320 
• R-Value Work: 0.245 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 229.300	α = 90.00
b = 49.500	β = 89.60
c = 96.000	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	phasing
VECREF	model building
X-PLOR	refinement
DENZO	data reduction
VECREF	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-07-21 
• Released Date: 1997-09-17 
• Deposition Author(s): Garboczi, D.N., Ghosh, P., Utz, U., Fan, Q.R., Biddison, W.E., Wiley, D.C.

Revision History 

• Version 1.0: 1997-09-17
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2012-12-12
  Type: Other
• Version 1.4: 2013-03-13
  Type: Other
• Version 1.5: 2016-05-25
  Type: Structure summary