1DG6

CRYSTAL STRUCTURE OF APO2L/TRAIL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.141 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A unique zinc-binding site revealed by a high-resolution X-ray structure of homotrimeric Apo2L/TRAIL.

Hymowitz, S.G.O'Connell, M.P.Ultsch, M.H.Hurst, A.Totpal, K.Ashkenazi, A.de Vos, A.M.Kelley, R.F.

(2000) Biochemistry 39: 633-650


  • PubMed Abstract: 
  • Apoptosis-inducing ligand 2 (Apo2L, also called TRAIL), a member of the tumor necrosis factor (TNF) family, induces apoptosis in a variety of human tumor cell lines but not in normal cells [Wiley, S. R., Schooley, K., Smolak, P. J., Din, W. S., Huang ...

    Apoptosis-inducing ligand 2 (Apo2L, also called TRAIL), a member of the tumor necrosis factor (TNF) family, induces apoptosis in a variety of human tumor cell lines but not in normal cells [Wiley, S. R., Schooley, K., Smolak, P. J., Din, W. S., Huang, C.-P., Nicholl, J. K., Sutherland, G. R., Smith, T. D., Rauch, C., Smith, C. A., and Goodwin, R. G. (1995) Immunity 3, 673-682; Pitti, R. M., Marsters, S. A., Ruppert, S., Donahue, C. J., Moore, A., and Ashkenazi, A. (1996) J. Biol. Chem. 271, 12687-12690]. Here we describe the structure of Apo2L at 1.3 A resolution and use alanine-scanning mutagenesis to map the receptor contact regions. The structure reveals a homotrimeric protein that resembles TNF with receptor-binding epitopes at the interface between monomers. A zinc ion is buried at the trimer interface, coordinated by the single cysteine residue of each monomer. The zinc ion is required for maintaining the native structure and stability and, hence, the biological activity of Apo2L. This is the first example of metal-dependent oligomerization and function of a cytokine.


    Organizational Affiliation

    Department of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
APO2L/TNF-RELATED APOPOTIS INDUCING LIGAND (TRAIL)
A
191Homo sapiensMutation(s): 1 
Gene Names: TNFSF10 (APO2L, TRAIL)
Find proteins for P50591 (Homo sapiens)
Go to Gene View: TNFSF10
Go to UniProtKB:  P50591
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.141 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 66.435α = 90.00
b = 66.435β = 90.00
c = 197.727γ = 120.00
Software Package:
Software NamePurpose
AMoREphasing
SHELXL-97refinement
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2018-03-14
    Type: Database references