1IAN

HUMAN P38 MAP KINASE INHIBITOR COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A highly specific inhibitor of human p38 MAP kinase binds in the ATP pocket.

Tong, L.Pav, S.White, D.M.Rogers, S.Crane, K.M.Cywin, C.L.Brown, M.L.Pargellis, C.A.

(1997) Nat.Struct.Mol.Biol. 4: 311-316


  • PubMed Abstract: 
  • The crystal structure of human p38 mitogen-activated protein (MAP) kinase in complex with a potent and highly specific pyridinyl-imidazole inhibitor has been determined at 2.0 A resolution. The structure of the kinase, which is in its unphosphorylate ...

    The crystal structure of human p38 mitogen-activated protein (MAP) kinase in complex with a potent and highly specific pyridinyl-imidazole inhibitor has been determined at 2.0 A resolution. The structure of the kinase, which is in its unphosphorylated state, is similar to that of the closely-related ERK2. The inhibitor molecule is bound in the ATP pocket. A hydrogen bond is made between the pyridyl nitrogen of the inhibitor and the main chain amido nitrogen of residue 109, analogous to the interaction from the N1 atom of ATP. The crystal structure provides possible explanations for the specificity of this class of inhibitors. Other protein kinase inhibitors may achieve their specificity through a similar mechanism. The structure also reveals a possible second binding site for this inhibitor, with currently unknown function.


    Related Citations: 
    • Sb 203580 is a Specific Inhibitor of a Map Kinase Homologue which is Stimulated by Cellular Stresses and Interleukin-1
      Cuenda, A.,Rouse, J.,Doza, Y.N.,Meier, R.,Cohen, P.,Gallagher, T.F.,Young, P.R.,Lee, J.C.
      (1995) FEBS Lett. 364: 229


    Organizational Affiliation

    Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
P38 MAP KINASE
A
366Homo sapiensMutation(s): 0 
Gene Names: MAPK14 (CSBP, CSBP1, CSBP2, CSPB1, MXI2, SAPK2A)
EC: 2.7.11.24
Find proteins for Q16539 (Homo sapiens)
Go to Gene View: MAPK14
Go to UniProtKB:  Q16539
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
D13
Query on D13

Download SDF File 
Download CCD File 
A
4-[5-(3-IODO-PHENYL)-2-(4-METHANESULFINYL-PHENYL)-1H-IMIDAZOL-4-YL]-PYRIDINE
C21 H16 I N3 O S
RXDZANYWRNIAOR-HHHXNRCGSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.234 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 65.100α = 90.00
b = 74.300β = 90.00
c = 77.900γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
MADSYSphasing
SCALEPACKdata scaling
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1997-03-07 
  • Released Date: 1998-05-06 
  • Deposition Author(s): Tong, L.

Revision History 

  • Version 1.0: 1998-05-06
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance