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- PDB-9jy2: Fab-CD3-delta epsilon-TCR complex -

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Basic information

Entry
Database: PDB / ID: 9jy2
TitleFab-CD3-delta epsilon-TCR complex
Components
  • (T cell receptor ...) x 2
  • (T-cell surface glycoprotein CD3 ...) x 4
  • Fab heavy chain
  • Fab light chain
KeywordsIMMUNE SYSTEM / T cell receptor / gamma delta TCR / immune cell / Fab complex
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 cell-cell adhesion mediated by integrin / positive regulation of T cell anergy / Fc-gamma receptor signaling pathway / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / 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 cell-cell adhesion mediated by integrin / positive regulation of T cell anergy / Fc-gamma receptor signaling pathway / gamma-delta T cell activation / CD4-positive, alpha-beta T cell proliferation / 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 / smoothened signaling pathway / T cell receptor complex / Translocation of ZAP-70 to Immunological synapse / small molecule binding / Phosphorylation of CD3 and TCR zeta chains / positive regulation of interleukin-4 production / establishment or maintenance of cell polarity / 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 / T cell costimulation / positive regulation of T cell proliferation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / FCGR3A-mediated IL10 synthesis / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / T cell activation / cerebellum development / negative regulation of smoothened signaling pathway / 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 / positive regulation of type II interferon production / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / cell-cell junction / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / T cell receptor signaling pathway / protein transport / Clathrin-mediated endocytosis / signaling receptor complex adaptor activity / 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 / negative regulation of gene expression / external side of plasma membrane / positive regulation of gene expression / protein kinase binding / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / identical protein binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
: / : / T-cell surface glycoprotein CD3 zeta subunit / CD3 gamma/delta subunit, Ig-like domain / T-cell surface glycoprotein CD3 delta chain / 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 ...: / : / T-cell surface glycoprotein CD3 zeta subunit / CD3 gamma/delta subunit, Ig-like domain / T-cell surface glycoprotein CD3 delta chain / 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
CHOLESTEROL / 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: 3.24 Å
AuthorsWang, L. / Li, J. / Li, Z.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: To Be Published
Title: Structures of the apo and agonist-crosslinked human gamma delta T-cell receptor
Authors: Wang, L. / Li, Z. / Fan, Y. / Li, J.
History
DepositionOct 12, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Nov 26, 2025Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Nov 26, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
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
A: Fab light chain
B: Fab heavy chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)93,83313
Polymers93,00410
Non-polymers8293
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

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


Mass: 3561.389 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: Homo sapiens (human) / References: UniProt: P20963
#2: 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: Homo sapiens (human) / References: UniProt: P04234
#3: Protein T-cell surface glycoprotein CD3 epsilon chain / T-cell surface antigen T3/Leu-4 epsilon chain


Mass: 13825.559 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD3E, T3E / Production host: Homo sapiens (human) / References: UniProt: P07766
#4: Protein T-cell surface glycoprotein CD3 gamma chain / T-cell receptor T3 gamma chain


Mass: 12943.872 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD3G, T3G / Production host: Homo sapiens (human) / References: UniProt: P09693

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

#5: Protein/peptide T cell receptor delta constant


Mass: 4090.033 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRDC / Production host: Homo sapiens (human) / References: UniProt: B7Z8K6
#6: Protein/peptide T cell receptor gamma constant 1


Mass: 4447.396 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRGC1, TCRGC1 / Production host: Homo sapiens (human) / References: UniProt: P0CF51

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Antibody , 2 types, 2 molecules AB

#7: Antibody Fab light chain


Mass: 11491.690 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#8: Antibody Fab heavy chain


Mass: 13563.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)

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Non-polymers / Sugars , 2 types, 3 molecules

#10: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H15NO6 / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#9: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46O / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
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: Fab-CD3-delta epsilon-TCR complex / Type: COMPLEX / Entity ID: #1-#8 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1400 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameCategory
1cryoSPARCparticle selection
8PHENIXmodel refinement
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.24 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 232138 / Symmetry type: POINT
RefinementHighest resolution: 3.24 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0056648
ELECTRON MICROSCOPYf_angle_d0.7259011
ELECTRON MICROSCOPYf_dihedral_angle_d7.3761009
ELECTRON MICROSCOPYf_chiral_restr0.0451041
ELECTRON MICROSCOPYf_plane_restr0.0041108

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