5NG2

Structure of RIP2K(D146N) with bound Staurosporine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Structures of the inactive and active states of RIP2 kinase inform on the mechanism of activation.

Pellegrini, E.Signor, L.Singh, S.Boeri Erba, E.Cusack, S.

(2017) PLoS One 12: e0177161-e0177161

  • DOI: https://doi.org/10.1371/journal.pone.0177161
  • Primary Citation of Related Structures:  
    5NG0, 5NG2, 5NG3

  • PubMed Abstract: 

    Innate immune receptors NOD1 and NOD2 are activated by bacterial peptidoglycans leading to recruitment of adaptor kinase RIP2, which, upon phosphorylation and ubiquitination, becomes a scaffold for downstream effectors. The kinase domain (RIP2K) is a pharmaceutical target for inflammatory diseases caused by aberrant NOD2-RIP2 signalling. Although structures of active RIP2K in complex with inhibitors have been reported, the mechanism of RIP2K activation remains to be elucidated. Here we analyse RIP2K activation by combining crystal structures of the active and inactive states with mass spectrometric characterization of their phosphorylation profiles. The active state has Helix αC inwardly displaced and the phosphorylated Activation Segment (AS) disordered, whilst in the inactive state Helix αC is outwardly displaced and packed against the helical, non-phosphorylated AS. Biophysical measurements show that the active state is a stable dimer whilst the inactive kinase is in a monomer-dimer equilibrium, consistent with the observed structural differences at the dimer interface. We conclude that RIP2 kinase auto-phosphorylation is intimately coupled to dimerization, similar to the case of BRAF. Our results will help drug design efforts targeting RIP2 as a potential treatment for NOD2-RIP2 related inflammatory diseases.


  • Organizational Affiliation

    European Molecular Biology Laboratory, Grenoble, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Receptor-interacting serine/threonine-protein kinase 2
A, B
304Homo sapiensMutation(s): 1 
Gene Names: RIPK2CARDIAKRICKRIP2UNQ277/PRO314/PRO34092
EC: 2.7.11.1 (PDB Primary Data), 2.7.10.2 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for O43353 (Homo sapiens)
Explore O43353 
Go to UniProtKB:  O43353
PHAROS:  O43353
GTEx:  ENSG00000104312 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO43353
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.083α = 90
b = 96.083β = 90
c = 202.266γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-06-07
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection
  • Version 1.3: 2024-01-17
    Changes: Data collection, Database references, Refinement description