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PDBsum entry 3huc

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protein ligands links
Transferase PDB id
3huc
Jmol
Contents
Protein chain
337 a.a. *
Ligands
BOG
G97
MES
Waters ×221
* Residue conservation analysis
PDB id:
3huc
Name: Transferase
Title: Human p38 map kinase in complex with rl40
Structure: Mitogen-activated protein kinase 14. Chain: a. Synonym: mitogen-activated protein kinase p38 alpha, map ki alpha, cytokine suppressive anti-inflammatory drug-binding csaid-binding protein, csbp, max-interacting protein 2, map mxi2, sapk2a. Engineered: yes
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: mapk14, csbp, csbp1, csbp2, cspb1, mxi2. Expressed in: escherichia coli. Expression_system_taxid: 562.
Resolution:
1.80Å     R-factor:   0.196     R-free:   0.232
Authors: C.Gruetter,J.R.Simard,M.Getlik,D.Rauh
Key ref: J.R.Simard et al. (2010). Fluorophore labeling of the glycine-rich loop as a method of identifying inhibitors that bind to active and inactive kinase conformations. J Am Chem Soc, 132, 4152-4160. PubMed id: 20201574 DOI: 10.1021/ja908083e
Date:
13-Jun-09     Release date:   09-Mar-10    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chain
Pfam   ArchSchema ?
Q16539  (MK14_HUMAN) -  Mitogen-activated protein kinase 14
Seq:
Struc:
360 a.a.
337 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 Enzyme reactions 
   Enzyme class: E.C.2.7.11.24  - Mitogen-activated protein kinase.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: ATP + a protein = ADP + a phosphoprotein
ATP
+ protein
= ADP
+ phosphoprotein
Molecule diagrams generated from .mol files obtained from the KEGG ftp site
 Gene Ontology (GO) functional annotation 
  GO annot!
  Cellular component     cell   8 terms 
  Biological process     intracellular signal transduction   71 terms 
  Biochemical function     nucleotide binding     11 terms  

 

 
    reference    
 
 
DOI no: 10.1021/ja908083e J Am Chem Soc 132:4152-4160 (2010)
PubMed id: 20201574  
 
 
Fluorophore labeling of the glycine-rich loop as a method of identifying inhibitors that bind to active and inactive kinase conformations.
J.R.Simard, M.Getlik, C.Grütter, R.Schneider, S.Wulfert, D.Rauh.
 
  ABSTRACT  
 
Targeting protein kinases with small organic molecules is a promising strategy to regulate unwanted kinase activity in both chemical biology and medicinal chemistry research. Traditionally, kinase inhibitors are identified in activity-based screening assays using enzymatically active kinase preparations to measure the perturbation of substrate phosphorylation, often resulting in the enrichment of classical ATP competitive (Type I) inhibitors. However, addressing enzymatically incompetent kinase conformations offers new opportunities for targeted therapies and is moving to the forefront of kinase inhibitor research. Here we report the development of a new FLiK (Fluorescent Labels in Kinases) binding assay to detect small molecules that induce changes in the conformation of the glycine-rich loop. Due to cross-talk between the glycine-rich loop and the activation loop in kinases, this alternative labeling approach can also detect ligands that stabilize inactive kinase conformations, including slow-binding Type II and Type III kinase inhibitors. Protein X-ray crystallography validated the assay results and identified a novel DFG-out binding mode for a quinazoline-based inhibitor in p38alpha kinase. We also detected the high-affinity binding of a clinically relevant and specific VEGFR2 inhibitor, and we provide structural details of its binding mode in p38alpha, in which it stabilizes the DFG-out conformation. Last, we demonstrate the power of this new FLiK labeling strategy to detect the binding of Type I ligands that induce conformational changes in the glycine-rich loop as a means of gaining affinity for the target kinase. This approach may be a useful alternative to develop direct binding assays for kinases that do not adopt the DFG-out conformation while also avoiding the use of expensive kits, detection reagents, or radioactivity frequently employed with activity-based assays.
 

Literature references that cite this PDB file's key reference

  PubMed id Reference
21420867 V.V.Vintonyak, H.Waldmann, and D.Rauh (2011).
Using small molecules to target protein phosphatases.
  Bioorg Med Chem, 19, 2145-2155.  
The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time.