2kcj | pdb_00002kcj

solution structure of FAPP1 PH domain

spinqualitylabelsall models 2kcj, 20 NMR models Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2kcj is a 1 chain structure with sequence from Human. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Gene: PLEKHA3, FAPP1 (HUMAN) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [PKHA3_HUMAN] Involved in Golgi to cell surface membrane traffic. Induces membrane tubulation. Binds preferentially to phosphatidylinositol 4-phosphate (PtdIns4P). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The mechanisms underlying Golgi targeting and vesiculation are unknown, although the responsible phosphatidylinositol 4-phosphate (PtdIns(4)P) ligand and four-phosphate-adaptor protein (FAPP) modules have been defined. The micelle-bound structure of the FAPP1 pleckstrin homology domain reveals how its prominent wedge independently tubulates Golgi membranes by leaflet penetration. Mutations compromising the exposed hydrophobicity of full-length FAPP2 abolish lipid monolayer binding and compression. The trafficking process begins with an electrostatic approach, phosphoinositide sampling and perpendicular penetration. Extensive protein contacts with PtdIns(4)P and neighbouring phospholipids reshape the bilayer and initiate tubulation through a conserved wedge with features shared by diverse protein modules. Structural basis of wedging the Golgi membrane by FAPP pleckstrin homology domains.,Lenoir M, Coskun U, Grzybek M, Cao X, Buschhorn SB, James J, Simons K, Overduin M EMBO Rep. 2010 Apr;11(4):279-84. doi: 10.1038/embor.2010.28. Epub 2010 Mar 19. PMID:20300118 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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