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- PDB-9ci8: T cell receptor complex -

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Basic information

Entry
Database: PDB / ID: 9ci8
TitleT cell receptor complex
Components
  • (T cell receptor ...) x 2
  • (T-cell surface glycoprotein CD3 ...) x 4
  • UCHT1 Fab
  • UCHT1 Fab chain 2
KeywordsIMMUNE SYSTEM / T cell receptor T cell immunity
Function / homology
Function and homology information


regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / T cell anergy / positive regulation of T cell anergy / positive regulation of cell-cell adhesion mediated by integrin / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / Fc-gamma receptor signaling pathway / negative thymic T cell selection ...regulation of lymphocyte apoptotic process / gamma-delta T cell receptor complex / Fc-gamma receptor III complex / T cell anergy / positive regulation of T cell anergy / positive regulation of cell-cell adhesion mediated by integrin / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / Fc-gamma receptor signaling pathway / negative thymic T cell selection / positive regulation of CD4-positive, alpha-beta T cell proliferation / alpha-beta T cell receptor complex / positive thymic T cell selection / positive regulation of protein localization to cell surface / signal complex assembly / Nef and signal transduction / positive regulation of cell-matrix adhesion / T cell receptor complex / smoothened signaling pathway / establishment or maintenance of cell polarity / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / positive regulation of interleukin-4 production / small molecule binding / dendrite development / protein complex oligomerization / alpha-beta T cell activation / Generation of second messenger molecules / FCGR activation / immunological synapse / Co-inhibition by PD-1 / Role of phospholipids in phagocytosis / T cell receptor binding / positive regulation of T cell proliferation / T cell costimulation / negative regulation of smoothened signaling pathway / positive regulation of interleukin-2 production / cerebellum development / positive regulation of calcium-mediated signaling / FCGR3A-mediated IL10 synthesis / protein tyrosine kinase binding / T cell activation / FCGR3A-mediated phagocytosis / apoptotic signaling pathway / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / Regulation of actin dynamics for phagocytic cup formation / SH3 domain binding / cell surface receptor protein tyrosine kinase signaling pathway / positive regulation of type II interferon production / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of peptidyl-tyrosine phosphorylation / transmembrane signaling receptor activity / Downstream TCR signaling / protein transport / cell-cell junction / Cargo recognition for clathrin-mediated endocytosis / signaling receptor complex adaptor activity / T cell receptor signaling pathway / Clathrin-mediated endocytosis / cell body / protein-containing complex assembly / regulation of apoptotic process / dendritic spine / adaptive immune response / cell surface receptor signaling pathway / G protein-coupled receptor signaling pathway / protein heterodimerization activity / external side of plasma membrane / negative regulation of gene expression / positive regulation of gene expression / protein kinase binding / Golgi apparatus / endoplasmic reticulum / protein homodimerization activity / identical protein binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
: / : / CD3 gamma/delta subunit, Ig-like domain / T-cell surface glycoprotein CD3 delta chain / T-cell surface glycoprotein CD3 zeta subunit / Ig-like domain on T-cell surface glycoprotein CD3 epsilon chain / CD3 protein, epsilon/gamma/delta subunit / T-cell surface glycoprotein CD3 zeta subunit/High affinity IgE receptor gamma subunit / T-cell surface glycoprotein CD3 zeta chain / Immunoreceptor tyrosine-based activation motif ...: / : / CD3 gamma/delta subunit, Ig-like domain / T-cell surface glycoprotein CD3 delta chain / T-cell surface glycoprotein CD3 zeta subunit / Ig-like domain on T-cell surface glycoprotein CD3 epsilon chain / CD3 protein, epsilon/gamma/delta subunit / T-cell surface glycoprotein CD3 zeta subunit/High affinity IgE receptor gamma subunit / T-cell surface glycoprotein CD3 zeta chain / Immunoreceptor tyrosine-based activation motif / Phosphorylated immunoreceptor signalling ITAM / ITAM motif mammalian type profile. / Immunoreceptor tyrosine-based activation motif / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
T cell receptor delta constant / T-cell surface glycoprotein CD3 delta chain / T-cell surface glycoprotein CD3 epsilon chain / T-cell surface glycoprotein CD3 gamma chain / T cell receptor gamma constant 1 / T-cell surface glycoprotein CD3 zeta chain
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.01 Å
AuthorsGully, B.S. / Rossjohn, J.
Funding support Australia, 1items
OrganizationGrant numberCountry
Australian Research Council (ARC)DP230102073 Australia
CitationJournal: To Be Published
Title: T cell receptor complex
Authors: Gully, B.S. / Rossjohn, J.
History
DepositionJul 2, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 31, 2024Provider: repository / Type: Initial release
Revision 1.1Nov 13, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: UCHT1 Fab
B: UCHT1 Fab chain 2
C: UCHT1 Fab
D: UCHT1 Fab chain 2
a: T-cell surface glycoprotein CD3 zeta chain
b: T-cell surface glycoprotein CD3 zeta chain
d: T-cell surface glycoprotein CD3 delta chain
e: T-cell surface glycoprotein CD3 epsilon chain
f: T-cell surface glycoprotein CD3 epsilon chain
g: T-cell surface glycoprotein CD3 gamma chain
m: T cell receptor delta constant
n: T cell receptor gamma constant 1


Theoretical massNumber of molelcules
Total (without water)163,29912
Polymers163,29912
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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T-cell surface glycoprotein CD3 ... , 4 types, 6 molecules abdefg

#3: Protein/peptide T-cell surface glycoprotein CD3 zeta chain / T-cell receptor T3 zeta chain


Mass: 3605.425 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD247, CD3Z, T3Z, TCRZ / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P20963
#4: Protein T-cell surface glycoprotein CD3 delta chain / T-cell receptor T3 delta chain


Mass: 11693.529 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD3D, T3D / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P04234
#5: Protein T-cell surface glycoprotein CD3 epsilon chain / T-cell surface antigen T3/Leu-4 epsilon chain


Mass: 14111.933 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD3E, T3E / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P07766
#6: Protein T-cell surface glycoprotein CD3 gamma chain / T-cell receptor T3 gamma chain


Mass: 12900.892 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD3G, T3G / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P09693

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T cell receptor ... , 2 types, 2 molecules mn

#7: Protein/peptide T cell receptor delta constant


Mass: 4104.061 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRDC / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: A0A075B6X2
#8: Protein/peptide T cell receptor gamma constant 1


Mass: 4403.386 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRGC1, TCRGC1 / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P0CF51

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Antibody , 2 types, 4 molecules ACBD

#1: Antibody UCHT1 Fab


Mass: 23614.113 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)
#2: Antibody UCHT1 Fab chain 2


Mass: 23766.975 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Cricetulus griseus (Chinese hamster)

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Details

Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: T cell receptor complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.2 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Cricetulus griseus (Chinese hamster)
Buffer solutionpH: 7.4 / Details: Hepes buffer saline
SpecimenConc.: 5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)
EM imaging opticsEnergyfilter name: GIF Quantum ER / Energyfilter slit width: 10 eV

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Processing

EM software
IDNameVersionCategory
1Gautomatch0.53particle selection
2EPUThermo Scientific Smart EPUimage acquisition
4CTFFIND4.1.14CTF correction
7Coot0.92model fitting
9PHENIX1.19.2model refinement
10cryoSPARCv4.2.0initial Euler assignment
11cryoSPARCv4.2.0final Euler assignment
13cryoSPARCv4.2.03D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 2663326
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.01 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 193581 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
Atomic model buildingPDB-ID: 7PHR

7phr


Accession code: 7PHR / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00410685
ELECTRON MICROSCOPYf_angle_d0.78514535
ELECTRON MICROSCOPYf_dihedral_angle_d6.5881483
ELECTRON MICROSCOPYf_chiral_restr0.0491704
ELECTRON MICROSCOPYf_plane_restr0.0051804

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