4OLI

The pseudokinase/kinase protein from JAK-family member TYK2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the pseudokinase-kinase domains from protein kinase TYK2 reveals a mechanism for Janus kinase (JAK) autoinhibition.

Lupardus, P.J.Ultsch, M.Wallweber, H.Bir Kohli, P.Johnson, A.R.Eigenbrot, C.

(2014) Proc.Natl.Acad.Sci.USA 111: 8025-8030

  • DOI: 10.1073/pnas.1401180111

  • PubMed Abstract: 
  • Janus kinases (JAKs) are receptor-associated multidomain tyrosine kinases that act downstream of many cytokines and interferons. JAK kinase activity is regulated by the adjacent pseudokinase domain via an unknown mechanism. Here, we report the 2.8-Å ...

    Janus kinases (JAKs) are receptor-associated multidomain tyrosine kinases that act downstream of many cytokines and interferons. JAK kinase activity is regulated by the adjacent pseudokinase domain via an unknown mechanism. Here, we report the 2.8-Å structure of the two-domain pseudokinase-kinase module from the JAK family member TYK2 in its autoinhibited form. We find that the pseudokinase and kinase interact near the kinase active site and that most reported mutations in cancer-associated JAK alleles cluster in or near this interface. Mutation of residues near the TYK2 interface that are analogous to those in cancer-associated JAK alleles, including the V617F and "exon 12" JAK2 mutations, results in increased kinase activity in vitro. These data indicate that JAK pseudokinases are autoinhibitory domains that hold the kinase domain inactive until receptor dimerization stimulates transition to an active state.


    Organizational Affiliation

    Departments of Structural Biology and lupardus.patrick@gene.com eigenbrot.c@gene.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Non-receptor tyrosine-protein kinase TYK2
A
645Homo sapiensMutation(s): 1 
Gene Names: TYK2
EC: 2.7.10.2
Find proteins for P29597 (Homo sapiens)
Go to Gene View: TYK2
Go to UniProtKB:  P29597
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2TT
Query on 2TT

Download SDF File 
Download CCD File 
A
2-chloro-N-{2-[(cyclopropylcarbonyl)amino]pyridin-4-yl}benzamide
C16 H14 Cl N3 O2
BZYFIAMMQPKLOE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.201 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 111.015α = 90.00
b = 111.015β = 90.00
c = 123.955γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
BUSTERrefinement
BOSdata collection
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-05-28
    Type: Initial release
  • Version 1.1: 2014-07-16
    Type: Database references