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- PDB-9jqr: Cryo-EM structure of the Vgamma9Vdelta2 TCR-engaged BTN3A1-BTN3A2... -

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Basic information

Entry
Database: PDB / ID: 9jqr
TitleCryo-EM structure of the Vgamma9Vdelta2 TCR-engaged BTN3A1-BTN3A2-BTN2A1 complex
Components
  • (Butyrophilin subfamily 3 member ...) x 2
  • Butyrophilin subfamily 2 member A1
  • Vdelta2 T cell receptor
  • Vgamma9 T cell receptor
KeywordsIMMUNE SYSTEM / butyrophilin / phosphoantigen / receptor
Function / homology
Function and homology information


Butyrophilin (BTN) family interactions / T cell mediated immunity / activated T cell proliferation / regulation of cytokine production / positive regulation of cytokine production / lipid metabolic process / positive regulation of type II interferon production / T cell receptor signaling pathway / adaptive immune response / external side of plasma membrane ...Butyrophilin (BTN) family interactions / T cell mediated immunity / activated T cell proliferation / regulation of cytokine production / positive regulation of cytokine production / lipid metabolic process / positive regulation of type II interferon production / T cell receptor signaling pathway / adaptive immune response / external side of plasma membrane / signaling receptor binding / membrane / plasma membrane
Similarity search - Function
Butyrophilin subfamily 1/2, SPRY/PRY domain / Butyrophilin subfamily 3, PRY/SPRY domain / : / : / Butyrophilin subfamily 3 member A2-like, Ig-C domain / SPRY-associated domain / SPRY-associated / PRY / Butyrophylin-like, SPRY domain / SPRY domain ...Butyrophilin subfamily 1/2, SPRY/PRY domain / Butyrophilin subfamily 3, PRY/SPRY domain / : / : / Butyrophilin subfamily 3 member A2-like, Ig-C domain / SPRY-associated domain / SPRY-associated / PRY / Butyrophylin-like, SPRY domain / SPRY domain / B30.2/SPRY domain / B30.2/SPRY domain profile. / B30.2/SPRY domain superfamily / Domain in SPla and the RYanodine Receptor. / SPRY domain / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Concanavalin A-like lectin/glucanase domain superfamily / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
Chem-H6P / Butyrophilin subfamily 3 member A1 / Butyrophilin subfamily 3 member A2 / Butyrophilin subfamily 2 member A1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å
AuthorsZhang, M. / Wang, Y.Q. / Xiao, J.Y.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32325018 China
CitationJournal: Immunity / Year: 2025
Title: Structures of butyrophilin multimers reveal a plier-like mechanism for V gamma 9V delta 2 T cell receptor activation
Authors: Zhang, M. / Wang, Y. / Cai, N. / Qu, Y. / Ma, X. / Xue, J. / Chen, X. / Zhang, X. / Xiao, J. / Zhang, Y.
History
DepositionSep 28, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jun 18, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Butyrophilin subfamily 3 member A1
B: Butyrophilin subfamily 3 member A2
D: Vdelta2 T cell receptor
E: Butyrophilin subfamily 2 member A1
F: Butyrophilin subfamily 2 member A1
G: Vgamma9 T cell receptor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)280,21118
Polymers276,7856
Non-polymers3,42612
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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Butyrophilin subfamily 3 member ... , 2 types, 2 molecules AB

#1: Protein Butyrophilin subfamily 3 member A1


Mass: 58247.715 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BTN3A1, BTF5 / Production host: Homo sapiens (human) / References: UniProt: O00481
#2: Protein Butyrophilin subfamily 3 member A2


Mass: 34629.918 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BTN3A2, BT3.2, BTF3, BTF4 / Production host: Homo sapiens (human) / References: UniProt: P78410

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Protein , 3 types, 4 molecules DEFG

#3: Protein Vdelta2 T cell receptor


Mass: 30473.377 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#4: Protein Butyrophilin subfamily 2 member A1


Mass: 60015.312 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BTN2A1, BT2.1, BTF1 / Production host: Homo sapiens (human) / References: UniProt: Q7KYR7
#5: Protein Vgamma9 T cell receptor


Mass: 33403.363 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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Sugars , 2 types, 11 molecules

#6: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}LINUCSPDB-CARE
#8: 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.: 9
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
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

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Non-polymers , 1 types, 1 molecules

#7: Chemical ChemComp-H6P / (2E)-4-hydroxy-3-methylbut-2-en-1-yl trihydrogen diphosphate


Mass: 262.092 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C5H12O8P2 / 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: Vgamma9Vdelta2 TCR-engaged BTN3A1-BTN3A2-BTN2A1 complex
Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
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: 1700 nm / Nominal defocus min: 1300 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 282479 / Symmetry type: POINT

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