3B9I

Crystal Structure of mouse GITRL at 2.5 A.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Evolution of GITRL immune function: murine GITRL exhibits unique structural and biochemical properties within the TNF superfamily.

Chattopadhyay, K.Ramagopal, U.A.Brenowitz, M.Nathenson, S.G.Almo, S.C.

(2008) Proc Natl Acad Sci U S A 105: 635-640

  • DOI: 10.1073/pnas.0710529105
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Glucocorticoid-induced TNF receptor ligand (GITRL), a recently identified member of the TNF superfamily, binds to its receptor, GITR, on both effector and regulatory T cells and generates positive costimulatory signals implicated in a wide range of T ...

    Glucocorticoid-induced TNF receptor ligand (GITRL), a recently identified member of the TNF superfamily, binds to its receptor, GITR, on both effector and regulatory T cells and generates positive costimulatory signals implicated in a wide range of T cell functions. In contrast to all previously characterized homotrimeric TNF family members, the mouse GITRL crystal structure reveals a previously unrecognized dimeric assembly that is stabilized via a unique "domain-swapping" interaction. Consistent with its crystal structure, mouse GITRL exists as a stable dimer in solution. Structure-guided mutagenesis studies confirmed the determinants responsible for dimerization and support a previously unrecognized receptor-recognition surface for mouse GITRL that has not been observed for any other TNF family members. Taken together, the unique structural and biochemical behavior of mouse GITRL, along with the unusual domain organization of murine GITR, support a previously unrecognized mechanism for signaling within the TNF superfamily.


    Organizational Affiliation

    Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GITR ligandA, B132Mus musculusMutation(s): 0 
Gene Names: Tnfsf18Gitrl
Find proteins for Q7TS55 (Mus musculus)
Explore Q7TS55 
Go to UniProtKB:  Q7TS55
NIH Common Fund Data Resources
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.791α = 90
b = 70.024β = 90
c = 71.654γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-01-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description