3CTQ

Structure of MAP kinase p38 in complex with a 1-o-tolyl-1,2,3-triazole-4-carboxamide

• PDB DOI: https://doi.org/10.2210/pdb3CTQ/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-04-14 Released: 2008-05-27 
• Deposition Author(s): Qian, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.269 
• R-Value Work: 0.230 

Literature

Structure-based design and subsequent optimization of 2-tolyl-(1,2,3-triazol-1-yl-4-carboxamide) inhibitors of p38 MAP kinase.

Cogan, D.A., Aungst, R., Breinlinger, E.C., Fadra, T., Goldberg, D.R., Hao, M.H., Kroe, R., Moss, N., Pargellis, C., Qian, K.C., Swinamer, A.D.

(2008) Bioorg Med Chem Lett 18: 3251-3255

• PubMed: 18462940 
• DOI: https://doi.org/10.1016/j.bmcl.2008.04.043
• Primary Citation of Related Structures:  
  3CTQ


• PubMed Abstract: 
  

  A computer-aided drug design strategy leads to the identification of a new class of p38 inhibitors based on the 2-tolyl-(1,2,3-triazol-1-yl-4-carboxamide) scaffold. The tolyl triazole amides provided a potent platform amenable to optimization. Further exploration leads to compounds with greater than 100-fold improvement in binding affinity to p38. Derivatives prepared to alter the physicochemical properties produced inhibitors with IC(50)'s in human whole blood as low as 83 nM.

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Organizational Affiliation: 

Department of Medicinal Chemistry, Boehringer Ingelheim Pharmaceuticals, Inc., Research and Development Center, 900 Ridgebury Road, PO Box 368, Ridgefield, CT 06877, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 40.39 kDa 
• Atom Count: 2,890 
• Modelled Residue Count: 336 
• Deposited Residue Count: 348 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mitogen-activated protein kinase 14	A	348	Homo sapiens	Mutation(s): 0  Gene Names: MAPK14, CSBP, CSBP1, CSBP2, CSPB1, MXI2 EC: 2.7.11.24
UniProt & NIH Common Fund Data Resources
Find proteins for Q16539 (Homo sapiens) Explore Q16539  Go to UniProtKB:  Q16539
PHAROS:  Q16539 GTEx:  ENSG00000112062

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
337	B [auth A]	N-benzyl-1-[5-({5-tert-butyl-2-methoxy-3-[(methylsulfonyl)amino]phenyl}carbamoyl)-2-methylphenyl]-1H-1,2,3-triazole-4-carboxamide C30 H34 N6 O5 S YVIHJEHDPKKGMU-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
337	PDBBind:  3CTQ	IC50: 40 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.269 
• R-Value Work: 0.230 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.45	α = 90
b = 73.89	β = 90
c = 74.14	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-05-27 
Deposition Author(s): Qian, K.

Revision History  

• Version 1.0: 2008-05-27
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations