4Z9V

TCTP contains a BH3-like domain, which instead of inhibiting, activates Bcl-xL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.099 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

TCTP contains a BH3-like domain, which instead of inhibiting, activates Bcl-xL.

Thebault, S.Agez, M.Chi, X.Stojko, J.Cura, V.Telerman, S.B.Maillet, L.Gautier, F.Billas-Massobrio, I.Birck, C.Troffer-Charlier, N.Karafin, T.Honore, J.Senff-Ribeiro, A.Montessuit, S.Johnson, C.M.Juin, P.Cianferani, S.Martinou, J.C.Andrews, D.W.Amson, R.Telerman, A.Cavarelli, J.

(2016) Sci Rep 6: 19725-19725

  • DOI: 10.1038/srep19725

  • PubMed Abstract: 
  • Translationally Controlled Tumor Protein (TCTP) is anti-apoptotic, key in development and cancer, however without the typical Bcl2 family members' structure. Here we report that TCTP contains a BH3-like domain and forms heterocomplexes with Bcl-xL. T ...

    Translationally Controlled Tumor Protein (TCTP) is anti-apoptotic, key in development and cancer, however without the typical Bcl2 family members' structure. Here we report that TCTP contains a BH3-like domain and forms heterocomplexes with Bcl-xL. The crystal structure of a Bcl-xL deletion variant-TCTP11-31 complex reveals that TCTP refolds in a helical conformation upon binding the BH3-groove of Bcl-xL, although lacking the h1-subregion interaction. Experiments using in vitro-vivo reconstituted systems and TCTP(+/-) mice indicate that TCTP activates the anti-apoptotic function of Bcl-xL, in contrast to all other BH3-proteins. Replacing the non-conserved h1 of TCTP by that of Bax drastically increases the affinity of this hybrid for Bcl-xL, modifying its biological properties. This work reveals a novel class of BH3-proteins potentiating the anti-apoptotic function of Bcl-xL.


    Organizational Affiliation

    Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France.,MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.,Sunnybrook Research Institute and Departments of Biochemistry and Medical Biophysics, University of Toronto, 2075 Bayview Ave., Toronto, Ontario, M4N 3M5, Canada.,Institut de Cancérologie de l'Ouest, Centre René Gauducheau Bd Jacques Monod, 44805 Saint Herblain-Nantes cedex.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France.,King's College London Centre for Stem Cells and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.,CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France.,Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), IPHC-DSA, Université de Strasbourg, CNRS, UMR7178, 25 rue Becquerel, 67087 Strasbourg, France.,Center for Cancer Research Nantes-Angers, UMR 892 Inserm - 6299 CNRS/Université de Nantes, IRS-UN, 8 Quai Moncousu - BP 70721, 44007 Nantes Cedex 1.,Department of Cell Biology, University of Geneva, 30, quai Ansermet, 1211 Geneva 4, Switzerland.,Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W. Hamilton, Ontario, L8N 3Z5, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bcl-2-like protein 1,APOPTOSIS REGULATOR BCL-XL
A, B
153Homo sapiensMutation(s): 0 
Gene Names: BCL2L1 (BCL2L, BCLX)
Find proteins for Q07817 (Homo sapiens)
Go to Gene View: BCL2L1
Go to UniProtKB:  Q07817
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Translationally-controlled tumor protein
C, D, E, F, G, H
21Homo sapiensMutation(s): 0 
Gene Names: TPT1
Find proteins for P13693 (Homo sapiens)
Go to Gene View: TPT1
Go to UniProtKB:  P13693
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
F, H
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
BCT
Query on BCT

Download SDF File 
Download CCD File 
A, B
BICARBONATE ION
C H O3
BVKZGUZCCUSVTD-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.099 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.185 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 100.357α = 90.00
b = 100.357β = 90.00
c = 105.045γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
Aimlessdata scaling
Cootmodel building
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-02-10
    Type: Initial release