2XUU | pdb_00002xuu

A Pef/Y Substrate Recognition and Signature Motif Plays a Critical Role in Dapk-Related Kinase Activity.

(2014) Chem Biol&nbsp21: 264

• PubMed:&nbsp24440081&nbspSearch on PubMed
• DOI:&nbsphttps://doi.org/10.1016/j.chembiol.2013.12.008
• Primary Citation of Related Structures: &nbsp
  2W4K, 2XUU, 4B4L


• PubMed Abstract:&nbsp
  

  Knowledge about protein kinase substrate preferences is biased toward residues immediately adjacent to the site of phosphorylation. By a combined structural, biochemical, and cellular approach, we have discovered an unexpected substrate recognition element with the consensus sequence PEF/Y in the tumor suppressor death-associated protein kinase 1. This motif can be effectively blocked by a specific pseudosubstrate-type interaction with an autoregulatory domain of this kinase. In this arrangement, the central PEF/Y glutamate interacts with a conserved arginine distant to the phosphorylation site in sequence and structure. We also demonstrate that the element is crucial for kinase activity regulation and substrate recognition. The PEF/Y motif distinguishes close death-associated protein kinase relatives from canonical calcium/calmodulin-dependent protein kinases. Insight into this signature and mode of action offers new opportunities to identify specific small molecule inhibitors in PEF/Y-containing protein kinases.

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Organizational Affiliation:&nbsp
• European Molecular Biology Laboratory Hamburg, Notkestrasse 85, 22603 Hamburg, Germany; European Molecular Biology Laboratory Heidelberg, Meyerhofstrasse 1, 69117 Heidelberg, Germany.
European Molecular Biology Laboratory Hamburg, Notkestrasse 85, 22603 Hamburg, Germany.
European Molecular Biology Laboratory Hamburg, Notkestrasse 85, 22603 Hamburg, Germany. Electronic address: [email protected].
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