5UWC

Cytokine-receptor complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.216 

wwPDB Validation  3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A dual role for the N-terminal domain of the IL-3 receptor in cell signalling.

Broughton, S.E.Hercus, T.R.Nero, T.L.Kan, W.L.Barry, E.F.Dottore, M.Cheung Tung Shing, K.S.Morton, C.J.Dhagat, U.Hardy, M.P.Wilson, N.J.Downton, M.T.Schieber, C.Hughes, T.P.Lopez, A.F.Parker, M.W.

(2018) Nat Commun 9: 386-386

  • DOI: 10.1038/s41467-017-02633-7
  • Primary Citation of Related Structures:  5UV8

  • PubMed Abstract: 
  • The interleukin-3 (IL-3) receptor is a cell-surface heterodimer that links the haemopoietic, vascular and immune systems and is overexpressed in acute and chronic myeloid leukaemia progenitor cells. It belongs to the type I cytokine receptor family i ...

    The interleukin-3 (IL-3) receptor is a cell-surface heterodimer that links the haemopoietic, vascular and immune systems and is overexpressed in acute and chronic myeloid leukaemia progenitor cells. It belongs to the type I cytokine receptor family in which the α-subunits consist of two fibronectin III-like domains that bind cytokine, and a third, evolutionarily unrelated and topologically conserved, N-terminal domain (NTD) with unknown function. Here we show by crystallography that, while the NTD of IL3Rα is highly mobile in the presence of IL-3, it becomes surprisingly rigid in the presence of IL-3 K116W. Mutagenesis, biochemical and functional studies show that the NTD of IL3Rα regulates IL-3 binding and signalling and reveal an unexpected role in preventing spontaneous receptor dimerisation. Our work identifies a dual role for the NTD in this cytokine receptor family, protecting against inappropriate signalling and dynamically regulating cytokine receptor binding and function.


    Organizational Affiliation

    Australian Cancer Research Foundation Rational Drug Discovery Centre, St. Vincent's Institute of Medical Research, Fitzroy, VIC, 3065, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule Chains Sequence Length Organism Details
Interleukin-3 receptor subunit alpha
G
288 Homo sapiens Gene Names: IL3RA (IL3R)
Find proteins for P26951 (Homo sapiens)
Go to Gene View: IL3RA
Go to UniProtKB:  P26951
Entity ID: 2
Molecule Chains Sequence Length Organism Details
Interleukin-3
I
122 Homo sapiens Gene Names: IL3
Find proteins for P08700 (Homo sapiens)
Go to Gene View: IL3
Go to UniProtKB:  P08700
Small Molecules
Ligands 5 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
CIT
Query on CIT

Download SDF File 
Download CCD File 
G, I
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
EDT
Query on EDT

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Download CCD File 
G
{[-(BIS-CARBOXYMETHYL-AMINO)-ETHYL]-CARBOXYMETHYL-AMINO}-ACETIC ACID
C10 H16 N2 O8
KCXVZYZYPLLWCC-UHFFFAOYSA-N
 Ligand Interaction
IMD
Query on IMD

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Download CCD File 
G
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
G
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
FUL
Query on FUL

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Download CCD File 
G
BETA-L-FUCOSE
6-DEOXY-BETA-L-GALACTOSE
C6 H12 O5
SHZGCJCMOBCMKK-KGJVWPDLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.216 
  • Space Group: P 61
Unit Cell:
Length (Å) Angle (°)
a = 106.461 α = 90.00
b = 106.461 β = 90.00
c = 96.116 γ = 120.00
Software Package:
Software Name Purpose
XDS data reduction
Aimless data scaling
PHASER phasing
REFMAC refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-02-07
    Type: Initial release