1Z92

structure of interleukin-2 with its alpha receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of interleukin-2 complexed with its alpha receptor.

Rickert, M.Wang, X.Boulanger, M.J.Goriatcheva, N.Garcia, K.C.

(2005) Science 308: 1477-1480

  • DOI: 10.1126/science.1109745

  • PubMed Abstract: 
  • Interleukin-2 (IL-2) is an immunoregulatory cytokine that binds sequentially to the alpha (IL-2Ralpha), beta (IL-2Rbeta), and common gamma chain (gammac) receptor subunits. Here we present the 2.8 angstrom crystal structure of a complex between human ...

    Interleukin-2 (IL-2) is an immunoregulatory cytokine that binds sequentially to the alpha (IL-2Ralpha), beta (IL-2Rbeta), and common gamma chain (gammac) receptor subunits. Here we present the 2.8 angstrom crystal structure of a complex between human IL-2 and IL-2Ralpha, which interact in a docking mode distinct from that of other cytokine receptor complexes. IL-2Ralpha is composed of strand-swapped "sushi-like" domains, unlike the classical cytokine receptor fold. As a result of this domain swap, IL-2Ralpha uses a composite surface to dock into a groove on IL-2 that also serves as a binding site for antagonist drugs. With this complex, we now have representative structures for each class of hematopoietic cytokine receptor-docking modules.


    Organizational Affiliation

    Departments of Microbiology and Immunology, and Structural Biology, Stanford University School of Medicine, 299 Campus Drive, Fairchild D319, Stanford, CA 94305-5124, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Interleukin-2
A
133Homo sapiensMutation(s): 0 
Gene Names: IL2
Find proteins for P60568 (Homo sapiens)
Go to Gene View: IL2
Go to UniProtKB:  P60568
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Interleukin-2 receptor alpha chain
B
219Homo sapiensMutation(s): 0 
Gene Names: IL2RA
Find proteins for P01589 (Homo sapiens)
Go to Gene View: IL2RA
Go to UniProtKB:  P01589
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.233 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 85.460α = 90.00
b = 85.460β = 90.00
c = 114.330γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
MOLREPphasing
HKL-2000data reduction
SCALEPACKdata scaling
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-06-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance