3QB7

Interleukin-4 mutant RGA bound to cytokine receptor common gamma


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.245 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.231 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Redirecting cell-type specific cytokine responses with engineered interleukin-4 superkines.

Junttila, I.S.Creusot, R.J.Moraga, I.Bates, D.L.Wong, M.T.Alonso, M.N.Suhoski, M.M.Lupardus, P.Meier-Schellersheim, M.Engleman, E.G.Utz, P.J.Fathman, C.G.Paul, W.E.Garcia, K.C.

(2012) Nat.Chem.Biol. 8: 990-998

  • DOI: 10.1038/nchembio.1096

  • PubMed Abstract: 
  • Cytokines dimerize their receptors, with the binding of the 'second chain' triggering signaling. In the interleukin (IL)-4 and IL-13 system, different cell types express varying numbers of alternative second receptor chains (γc or IL-13Rα1), forming ...

    Cytokines dimerize their receptors, with the binding of the 'second chain' triggering signaling. In the interleukin (IL)-4 and IL-13 system, different cell types express varying numbers of alternative second receptor chains (γc or IL-13Rα1), forming functionally distinct type I or type II complexes. We manipulated the affinity and specificity of second chain recruitment by human IL-4. A type I receptor-selective IL-4 'superkine' with 3,700-fold higher affinity for γc was three- to ten-fold more potent than wild-type IL-4. Conversely, a variant with high affinity for IL-13Rα1 more potently activated cells expressing the type II receptor and induced differentiation of dendritic cells from monocytes, implicating the type II receptor in this process. Superkines showed signaling advantages on cells with lower second chain numbers. Comparative transcriptional analysis reveals that the superkines induce largely redundant gene expression profiles. Variable second chain numbers can be exploited to redirect cytokines toward distinct cell subsets and elicit new actions, potentially improving the selectivity of cytokine therapy.


    Organizational Affiliation

    Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Interleukin 4
A, B
132Homo sapiensMutation(s): 8 
Gene Names: IL4
Find proteins for P05112 (Homo sapiens)
Go to Gene View: IL4
Go to UniProtKB:  P05112
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Cytokine receptor common subunit gamma
C, D
203Homo sapiensMutation(s): 1 
Gene Names: IL2RG
Find proteins for P31785 (Homo sapiens)
Go to Gene View: IL2RG
Go to UniProtKB:  P31785
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.245 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.231 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 75.969α = 90.00
b = 105.879β = 90.00
c = 121.093γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-25
    Type: Initial release
  • Version 1.1: 2012-11-14
    Type: Database references
  • Version 1.2: 2012-12-12
    Type: Database references
  • Version 1.3: 2017-11-08
    Type: Advisory, Refinement description