5ZZ3

Crystal structure of intracellular B30.2 domain of BTN3A3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Structural Change in Butyrophilin upon Phosphoantigen Binding Underlies Phosphoantigen-Mediated V gamma 9V delta 2 T Cell Activation.

Yang, Y.Li, L.Yuan, L.Zhou, X.Duan, J.Xiao, H.Cai, N.Han, S.Ma, X.Liu, W.Chen, C.C.Wang, L.Li, X.Chen, J.Kang, N.Chen, J.Shen, Z.Malwal, S.R.Liu, W.Shi, Y.Oldfield, E.Guo, R.T.Zhang, Y.

(2019) Immunity 50: 1043

  • DOI: 10.1016/j.immuni.2019.02.016
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human Vγ9Vδ2 T cells respond to microbial infections and malignancy by sensing diphosphate-containing metabolites called phosphoantigens, which bind to the intracellular domain of butyrophilin 3A1, triggering extracellular interactions with the Vγ9Vδ ...

    Human Vγ9Vδ2 T cells respond to microbial infections and malignancy by sensing diphosphate-containing metabolites called phosphoantigens, which bind to the intracellular domain of butyrophilin 3A1, triggering extracellular interactions with the Vγ9Vδ2 T cell receptor (TCR). Here, we examined the molecular basis of this "inside-out" triggering mechanism. Crystal structures of intracellular butyrophilin 3A proteins alone or in complex with the potent microbial phosphoantigen HMBPP or a synthetic analog revealed key features of phosphoantigens and butyrophilins required for γδ T cell activation. Analyses with chemical probes and molecular dynamic simulations demonstrated that dimerized intracellular proteins cooperate in sensing HMBPP to enhance the efficiency of γδ T cell activation. HMBPP binding to butyrophilin doubled the binding force between a γδ T cell and a target cell during "outside" signaling, as measured by single-cell force microscopy. Our findings provide insight into the "inside-out" triggering of Vγ9Vδ2 T cell activation by phosphoantigen-bound butyrophilin, facilitating immunotherapeutic drug design.


    Organizational Affiliation

    Schrödinger, GmbH, Q7 23, 681 61 Mannheim, Germany.,Institute of Immunology, Tsinghua University, Beijing 100084, China.,Schrödinger, Inc., 120 West 45(th) Street, New York, NY 10036, USA.,School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Bio-catalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan 430062, China. Electronic address: guoreyting@gmail.com.,State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China.,Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Electronic address: eoldfiel@illinois.edu.,School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China. Electronic address: zhangyonghui@tsinghua.edu.cn.,Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.,State Key Laboratory of Bio-catalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan 430062, China.,School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China; Joint Graduate Program of Peking-Tsinghua-NIBS, School of Life Sciences, Tsinghua University, Beijing 100084, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Butyrophilin, subfamily 3, member A3 isoform b variant
A
290Homo sapiensMutation(s): 0 
Gene Names: BTN3A3 (BTF3)
Find proteins for O00478 (Homo sapiens)
Go to Gene View: BTN3A3
Go to UniProtKB:  O00478
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.195 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 50.308α = 90.00
b = 50.308β = 90.00
c = 261.093γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data scaling
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2019-04-10
    Type: Data collection, Database references
  • Version 1.2: 2019-05-01
    Type: Data collection, Database references