DEP domain

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Domain found in Dishevelled, Egl-10, and Pleckstrin (DEP)
PDB 1fsh EBI.jpg
structural basis of the recognition of the dishevelled dep domain in the wnt signaling pathway
Identifiers
Symbol DEP
Pfam PF00610
InterPro IPR000591

In molecular biology, the DEP domain (Dishevelled, Egl-10 and Pleckstrin domain) is a globular protein domain of about 80 amino acids that is found in over 50 proteins involved in G-protein signalling pathways. It was named after the three proteins it was initially found in:

Mammalian regulators of G-protein signalling also contain these domains, and regulate signal transduction by increasing the GTPase activity of G-protein alpha subunits, thereby driving them into their inactive GDP-bound form. It has been proposed that the DEP domain could play a selective role in targeting DEP domain-containing proteins to specific subcellular membranous sites, perhaps even to specific G protein-coupled signaling pathways.[2][3] Nuclear magnetic resonance spectroscopy has revealed that the DEP domain comprises a three-helix bundle, a beta-hairpin 'arm' composed of two beta-strands and two short beta-strands in the C-terminal region.[3]

References[edit]

  1. ^ Masuho, I.; Wakasugi-Masuho, H.; Posokhova, E. N.; Patton, J. R.; Martemyanov, K. A. (2011). "Type 5 G Protein   Subunit (G 5) Controls the Interaction of Regulator of G Protein Signaling 9 (RGS9) with Membrane Anchors". Journal of Biological Chemistry 286 (24): 21806–21813. doi:10.1074/jbc.M111.241513. PMC 3122235. PMID 21511947.  edit
  2. ^ Burchett SA (October 2000). "Regulators of G protein signaling: a bestiary of modular protein binding domains". J. Neurochem. 75 (4): 1335–51. doi:10.1046/j.1471-4159.2000.0751335.x. PMID 10987813. 
  3. ^ a b Wong HC, Mao J, Nguyen JT, Srinivas S, Zhang W, Liu B, Li L, Wu D, Zheng J (December 2000). "Structural basis of the recognition of the dishevelled DEP domain in the Wnt signaling pathway". Nat. Struct. Biol. 7 (12): 1178–84. doi:10.1038/82047. PMID 11101902. 

This article incorporates text from the public domain Pfam and InterPro IPR000591