6SO1

Fragment N13569a in complex with MAP kinase p38-alpha


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.66 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Mining the PDB for Tractable Cases Where X-ray Crystallography Combined with Fragment Screens Can Be Used to Systematically Design Protein-Protein Inhibitors: Two Test Cases Illustrated by IL1 beta-IL1R and p38 alpha-TAB1 Complexes.

Nichols, C.Ng, J.Keshu, A.Kelly, G.Conte, M.R.Marber, M.S.Fraternali, F.De Nicola, G.F.

(2020) J Med Chem 63: 7559-7568

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c00403
  • Primary Citation of Related Structures:  
    5R85, 5R86, 5R87, 5R88, 5R89, 5R8A, 5R8B, 5R8C, 5R8D, 5R8E, 5R8F, 5R8G, 5R8H, 5R8I, 5R8J, 5R8K, 5R8L, 5R8M, 5R8N, 5R8O, 5R8P, 5R8Q, 5R8U, 5R8V, 5R8W, 5R8X, 5R8Y, 5R8Z, 5R90, 5R91, 5R92, 5R93, 5R94, 5R95, 5R96, 5R97, 5R98, 5R99, 5R9A, 5R9B, 5R9C, 5R9D, 5R9E, 5R9F, 5R9G, 5R9H, 5R9I, 5R9J, 5R9K, 5R9L

  • PubMed Abstract: 

    Nowadays, it is possible to combine X-ray crystallography and fragment screening in a medium throughput fashion to chemically probe the surfaces used by proteins to interact and use the outcome of the screens to systematically design protein-protein inhibitors. To prove it, we first performed a bioinformatics analysis of the Protein Data Bank protein complexes, which revealed over 400 cases where the crystal lattice of the target in the free form is such that large portions of the interacting surfaces are free from lattice contacts and therefore accessible to fragments during soaks. Among the tractable complexes identified, we then performed single fragment crystal screens on two particular interesting cases: the Il1β-ILR and p38α-TAB1 complexes. The result of the screens showed that fragments tend to bind in clusters, highlighting the small-molecule hotspots on the surface of the target protein. In most of the cases, the hotspots overlapped with the binding sites of the interacting proteins.


  • Organizational Affiliation

    British Heart Foundation Centre of Excellence, Department of Cardiology, The Rayne Institute, St Thomas' Hospital, King's College London, London SE1 7EH, U.K.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14381Mus musculusMutation(s): 0 
Gene Names: Mapk14Crk1Csbp1Csbp2
EC: 2.7.11.24
UniProt
Find proteins for P47811 (Mus musculus)
Explore P47811 
Go to UniProtKB:  P47811
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP47811
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
LO5 (Subject of Investigation/LOI)
Query on LO5

Download Ideal Coordinates CCD File 
B [auth A]1-(1,3-benzodioxol-5-yl)-~{N}-[[(2~{R})-oxolan-2-yl]methyl]methanamine
C13 H17 N O3
GSKKKMLEVJZIAD-LLVKDONJSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
K [auth A],
L [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
CL
Query on CL

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG
Query on MG

Download Ideal Coordinates CCD File 
J [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.66 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.683α = 90
b = 85.883β = 90
c = 126.807γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
British Heart FoundationUnited KingdomSP/14/2/30922

Revision History  (Full details and data files)

  • Version 1.0: 2019-10-02
    Type: Initial release
  • Version 1.1: 2020-10-14
    Changes: Database references, Derived calculations
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description