5HX6

Crystal structure of RIP1 kinase with a benzo[b][1,4]oxazepin-4-one


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

DNA-Encoded Library Screening Identifies Benzo[b][1,4]oxazepin-4-ones as Highly Potent and Monoselective Receptor Interacting Protein 1 Kinase Inhibitors.

Harris, P.A.King, B.W.Bandyopadhyay, D.Berger, S.B.Campobasso, N.Capriotti, C.A.Cox, J.A.Dare, L.Dong, X.Finger, J.N.Grady, L.C.Hoffman, S.J.Jeong, J.U.Kang, J.Kasparcova, V.Lakdawala, A.S.Lehr, R.McNulty, D.E.Nagilla, R.Ouellette, M.T.Pao, C.S.Rendina, A.R.Schaeffer, M.C.Summerfield, J.D.Swift, B.A.Totoritis, R.D.Ward, P.Zhang, A.Zhang, D.Marquis, R.W.Bertin, J.Gough, P.J.

(2016) J.Med.Chem. 59: 2163-2178

  • DOI: 10.1021/acs.jmedchem.5b01898

  • PubMed Abstract: 
  • The recent discovery of the role of receptor interacting protein 1 (RIP1) kinase in tumor necrosis factor (TNF)-mediated inflammation has led to its emergence as a highly promising target for the treatment of multiple inflammatory diseases. We screen ...

    The recent discovery of the role of receptor interacting protein 1 (RIP1) kinase in tumor necrosis factor (TNF)-mediated inflammation has led to its emergence as a highly promising target for the treatment of multiple inflammatory diseases. We screened RIP1 against GSK's DNA-encoded small-molecule libraries and identified a novel highly potent benzoxazepinone inhibitor series. We demonstrate that this template possesses complete monokinase selectivity for RIP1 plus unique species selectivity for primate versus nonprimate RIP1. We elucidate the conformation of RIP1 bound to this benzoxazepinone inhibitor driving its high kinase selectivity and design specific mutations in murine RIP1 to restore potency to levels similar to primate RIP1. This series differentiates itself from known RIP1 inhibitors in combining high potency and kinase selectivity with good pharmacokinetic profiles in rodents. The favorable developability profile of this benzoxazepinone template, as exemplified by compound 14 (GSK'481), makes it an excellent starting point for further optimization into a RIP1 clinical candidate.


    Organizational Affiliation

    Platform Technology & Science, GlaxoSmithKline , Winter Street, Waltham, Massachusetts 02451, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Receptor-interacting serine/threonine-protein kinase 1
A, B
303Homo sapiensMutation(s): 4 
Gene Names: RIPK1 (RIP, RIP1)
EC: 2.7.11.1
Find proteins for Q13546 (Homo sapiens)
Go to Gene View: RIPK1
Go to UniProtKB:  Q13546
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
65U
Query on 65U

Download SDF File 
Download CCD File 
A, B
5-benzyl-N-[(3S)-5-methyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]-1,2-oxazole-3-carboxamide
C21 H19 N3 O4
KNOUWGGQMADIBV-KRWDZBQOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.199 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 42.600α = 90.00
b = 101.350β = 90.00
c = 131.060γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
Aimlessdata scaling
XDSdata reduction
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-23
    Type: Database references