5LMA

HUMAN SPLEEN TYROSINE KINASE KINASE DOMAIN IN COMPLEX WITH AZANAPHTHYRIDINE INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.43 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Optimisation of a novel series of potent and orally bioavailable azanaphthyridine SYK inhibitors.

Garton, N.S.Barker, M.D.Davis, R.P.Douault, C.Hooper-Greenhill, E.Jones, E.Lewis, H.D.Liddle, J.Lugo, D.McCleary, S.Preston, A.G.Ramirez-Molina, C.Neu, M.Shipley, T.J.Somers, D.O.Watson, R.J.Wilson, D.M.

(2016) Bioorg Med Chem Lett 26: 4606-4612

  • DOI: 10.1016/j.bmcl.2016.08.070
  • Primary Citation of Related Structures:  
    5LMA, 5LMB

  • PubMed Abstract: 
  • The optimisation of the azanaphthyridine series of Spleen Tyrosine Kinase inhibitors is described. The medicinal chemistry strategy was focused on optimising the human whole blood activity whilst achieving a sufficient margin over hERG activity. A go ...

    The optimisation of the azanaphthyridine series of Spleen Tyrosine Kinase inhibitors is described. The medicinal chemistry strategy was focused on optimising the human whole blood activity whilst achieving a sufficient margin over hERG activity. A good pharmacokinetic profile was achieved by modification of the pKa. Morpholine compound 32 is a potent SYK inhibitor showing moderate selectivity, good oral bioavailability and good efficacy in the rat Arthus model but demonstrated a genotoxic potential in the Ames assay.


    Organizational Affiliation

    AstraZeneca, Hodgkin Building, Chesterford Research Campus, Little Chesterford, Saffron Walden, Cambs. CB10 1XL, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase SYKA277Homo sapiensMutation(s): 0 
Gene Names: SYK
EC: 2.7.10.2
Find proteins for P43405 (Homo sapiens)
Explore P43405 
Go to UniProtKB:  P43405
NIH Common Fund Data Resources
PHAROS  P43405
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
6ZG
Query on 6ZG

Download CCD File 
A
~{N}'-[7-(4-methylphenyl)pyrido[3,4-b]pyrazin-5-yl]butane-1,4-diamine
C18 H21 N5
FYJFZOONLWHKMF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
AL-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
6ZGIC50:  250   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.43 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.175α = 90
b = 87.454β = 99.64
c = 39.851γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
REFMACphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2016-07-29 
  • Released Date: 2016-09-14 
  • Deposition Author(s): Somers, D.O., Neu, M.

Revision History 

  • Version 1.0: 2016-09-14
    Type: Initial release
  • Version 1.1: 2016-09-21
    Changes: Database references