PDBsum entry 3gc7

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protein ligands links
Transferase PDB id
Protein chain
349 a.a. *
Waters ×453
* Residue conservation analysis
PDB id:
Name: Transferase
Title: The structure of p38alpha in complex with a dihydroquinazoli
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. Mutation: yes
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: csbp, csbp1, csbp2, cspb1, mapk14, mk14-human, mxi2. Expressed in: escherichia coli. Expression_system_taxid: 562.
1.80Å     R-factor:   0.182     R-free:   0.208
Authors: G.Scapin,S.B.Patel
Key ref: S.B.Patel et al. (2009). The three-dimensional structure of MAP kinase p38beta: different features of the ATP-binding site in p38beta compared with p38alpha. Acta Crystallogr D Biol Crystallogr, 65, 777-785. PubMed id: 19622861
21-Feb-09     Release date:   21-Jul-09    
Go to PROCHECK summary

Protein chain
Pfam   ArchSchema ?
Q16539  (MK14_HUMAN) -  Mitogen-activated protein kinase 14
360 a.a.
349 a.a.*
Key:    PfamA domain  Secondary structure  CATH domain
* PDB and UniProt seqs differ at 1 residue position (black cross)

 Enzyme reactions 
   Enzyme class: E.C.  - Mitogen-activated protein kinase.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: ATP + a protein = ADP + a phosphoprotein
+ protein
+ 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  


Acta Crystallogr D Biol Crystallogr 65:777-785 (2009)
PubMed id: 19622861  
The three-dimensional structure of MAP kinase p38beta: different features of the ATP-binding site in p38beta compared with p38alpha.
S.B.Patel, P.M.Cameron, S.J.O'Keefe, B.Frantz-Wattley, J.Thompson, E.A.O'Neill, T.Tennis, L.Liu, J.W.Becker, G.Scapin.
The p38 mitogen-activated protein kinases are activated in response to environmental stress and cytokines and play a significant role in transcriptional regulation and inflammatory responses. Of the four p38 isoforms known to date, two (p38alpha and p38beta) have been identified as targets for cytokine-suppressive anti-inflammatory drugs. Recently, it was reported that specific inhibition of the p38alpha isoform is necessary and sufficient for anti-inflammatory efficacy in vivo, while further inhibition of p38beta may not provide any additional benefit. In order to aid the development of p38alpha-selective compounds, the three-dimensional structure of p38beta was determined. To do so, the C162S and C119S,C162S mutants of human MAP kinase p38beta were cloned, expressed in Escherichia coli and purified. Initial screening hits in crystallization trials in the presence of an inhibitor led upon optimization to crystals that diffracted to 2.05 A resolution and allowed structure determination (PDB codes 3gc8 and 3gc9 for the single and double mutant, respectively). The structure of the p38alpha C162S mutant in complex with the same inhibitor is also reported (PDB code 3gc7). A comparison between the structures of the two kinases showed that they are highly similar overall but that there are differences in the relative orientation of the N- and C-terminal domains that causes a reduction in the size of the ATP-binding pocket in p38beta. This difference in size between the two pockets could be exploited in order to achieve selectivity.