5IXI

Structure of human JAK1 FERM/SH2 in complex with IFNLR1/IL10RA chimera


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.57 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.217 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Structural Basis for Class II Cytokine Receptor Recognition by JAK1.

Ferrao, R.Wallweber, H.J.Ho, H.Tam, C.Franke, Y.Quinn, J.Lupardus, P.J.

(2016) Structure 24: 897-905

  • DOI: 10.1016/j.str.2016.03.023
  • Primary Citation of Related Structures:  
    5IXD, 5IXI

  • PubMed Abstract: 
  • JAK1 is a member of the Janus kinase (JAK) family of non-receptor tyrosine kinases that are activated in response to cytokines and interferons. Here, we present two crystal structures of the human JAK1 FERM and SH2 domains bound to peptides derived from the class II cytokine receptors IFN-λ receptor 1 and IL-10 receptor 1 (IFNLR1 and IL10RA) ...

    JAK1 is a member of the Janus kinase (JAK) family of non-receptor tyrosine kinases that are activated in response to cytokines and interferons. Here, we present two crystal structures of the human JAK1 FERM and SH2 domains bound to peptides derived from the class II cytokine receptors IFN-λ receptor 1 and IL-10 receptor 1 (IFNLR1 and IL10RA). These structures reveal an interaction site in the JAK1 FERM that accommodates the so-called "box1" membrane-proximal receptor peptide motif. Biophysical analysis of the JAK1-IFNLR1 interaction indicates that the receptor box1 is the primary driver of the JAK1 interaction, and identifies residues conserved among class II receptors as important for binding. In addition, we demonstrate that a second "box2" receptor motif further stabilizes the JAK1-IFNLR1 complex. Together, these data identify a conserved JAK binding site for receptor peptides and elucidate the mechanism by which class II cytokine receptors interact with JAK1.


    Organizational Affiliation

    Department of Structural Biology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA. Electronic address: lupardus.patrick@gene.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase JAK1A544Homo sapiensMutation(s): 0 
Gene Names: JAK1JAK1AJAK1B
EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P23458 (Homo sapiens)
Explore P23458 
Go to UniProtKB:  P23458
PHAROS:  P23458
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Chimera protein of Interferon lambda receptor 1 and Interleukin-10 receptor subunit alphaB53Homo sapiensMutation(s): 0 
Gene Names: IFNLR1IL28RALICR2IL10RAIL10R
UniProt & NIH Common Fund Data Resources
Find proteins for Q8IU57 (Homo sapiens)
Explore Q8IU57 
Go to UniProtKB:  Q8IU57
PHAROS:  Q8IU57
Find proteins for Q13651 (Homo sapiens)
Explore Q13651 
Go to UniProtKB:  Q13651
PHAROS:  Q13651
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.57 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.217 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.17α = 90
b = 110.42β = 98.11
c = 94.87γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2016-06-15
    Changes: Database references
  • Version 1.2: 2016-07-06
    Changes: Data collection