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| | <StructureSection load='5wou' size='340' side='right'caption='[[5wou]], [[Resolution|resolution]] 1.55Å' scene=''> | | <StructureSection load='5wou' size='340' side='right'caption='[[5wou]], [[Resolution|resolution]] 1.55Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5wou]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5WOU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5WOU FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5wou]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5WOU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5WOU FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.55Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">scrib, smi, vart, CG5462 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5wou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5wou OCA], [http://pdbe.org/5wou PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5wou RCSB], [http://www.ebi.ac.uk/pdbsum/5wou PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5wou ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5wou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5wou OCA], [https://pdbe.org/5wou PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5wou RCSB], [https://www.ebi.ac.uk/pdbsum/5wou PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5wou ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/LAP4_DROME LAP4_DROME]] Required for polarization of the embryonic, imaginal disk and follicular epithelia. Specifically restricts apical membrane determinants to the apical cell surface; acts to exclude crb from the basolateral domain and define adherens junction position. Regulates cellular growth and differentiation; acts as a tumor suppressor. Essential for odor guided behavior.<ref>PMID:10688207</ref> <ref>PMID:10884224</ref> <ref>PMID:11578873</ref> <ref>PMID:12930751</ref> | + | [https://www.uniprot.org/uniprot/SCRIB_DROME SCRIB_DROME] Required for polarization of the embryonic, imaginal disk and follicular epithelia. Specifically restricts apical membrane determinants to the apical cell surface; acts to exclude crb from the basolateral domain and define adherens junction position. Regulates cellular growth and differentiation; acts as a tumor suppressor. Essential for odor guided behavior.<ref>PMID:10688207</ref> <ref>PMID:10884224</ref> <ref>PMID:11578873</ref> <ref>PMID:12930751</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Drome]] | + | [[Category: Drosophila melanogaster]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Caria, S]] | + | [[Category: Caria S]] |
| - | [[Category: Kvansakul, M]] | + | [[Category: Kvansakul M]] |
| - | [[Category: Cell adhesion]]
| + | |
| - | [[Category: Cell polarity]]
| + | |
| - | [[Category: Guk-holder]]
| + | |
| - | [[Category: Pdz domain]]
| + | |
| - | [[Category: Scribble]]
| + | |
| Structural highlights
Function
SCRIB_DROME Required for polarization of the embryonic, imaginal disk and follicular epithelia. Specifically restricts apical membrane determinants to the apical cell surface; acts to exclude crb from the basolateral domain and define adherens junction position. Regulates cellular growth and differentiation; acts as a tumor suppressor. Essential for odor guided behavior.[1] [2] [3] [4]
Publication Abstract from PubMed
Epithelial cell polarity is controlled by components of the Scribble polarity module, and its regulation is critical for tissue architecture and cell proliferation and cell migration. In Drosophila melanogaster, the adaptor protein Guk-holder (Gukh) binds to the Scribbled (Scrib) and Discs Large (Dlg) components of the Scribble polarity module and plays an important role in the formation of neuromuscular junctions. However, Gukhs role in epithelial tissue formation and the molecular basis for the Scrib-Gukh interaction remain to be defined. We now show using isothermal titration calorimetry that the Scrib PDZ1 domain is the major site for an interaction with Gukh. Furthermore, we defined the structural basis of this interaction by determining the crystal structure of the Scrib PDZ1-Gukh complex. The C-terminal PDZ-binding motif of Gukh is located in the canonical ligand binding groove of Scrib PDZ1, and utilizes an unusually extensive network of hydrogen bonds and ionic interactions to enable binding to PDZ1 with high affinity. We next examined the role of Gukh along with those of Scrib and Dlg in Drosophila epithelial tissues, and found that Gukh is expressed in larval-wing and eye-epithelial tissues and co-localizes with Scrib and Dlg at the apical cell cortex. Importantly, we show that Gukh functions with Scrib and Dlg in the development of Drosophila epithelial tissues, with depletion of Gukh enhancing the eye- and wing-tissue defects caused by Scrib or Dlg depletion. Overall our findings reveal that Scribs PDZ1 domain functions in the interaction with Gukh and that the Scrib-Gukh interaction has a key role in epithelial tissue development in Drosophila.
Drosophila melanogaster Guk-holder interacts with the Scribbled PDZ1 domain and regulates epithelial development with Scribbled and Discs Large.,Caria S, Magtoto CM, Samiei T, Portela M, Lim KYB, How JY, Stewart BZ, Humbert PO, Richardson HE, Kvansakul M J Biol Chem. 2018 Jan 29. pii: M117.817528. doi: 10.1074/jbc.M117.817528. PMID:29378849[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Bilder D, Perrimon N. Localization of apical epithelial determinants by the basolateral PDZ protein Scribble. Nature. 2000 Feb 10;403(6770):676-80. PMID:10688207 doi:http://dx.doi.org/10.1038/35001108
- ↑ Bilder D, Li M, Perrimon N. Cooperative regulation of cell polarity and growth by Drosophila tumor suppressors. Science. 2000 Jul 7;289(5476):113-6. PMID:10884224
- ↑ Li M, Marhold J, Gatos A, Torok I, Mechler BM. Differential expression of two scribble isoforms during Drosophila embryogenesis. Mech Dev. 2001 Oct;108(1-2):185-90. PMID:11578873
- ↑ Ganguly I, Mackay TF, Anholt RR. Scribble is essential for olfactory behavior in Drosophila melanogaster. Genetics. 2003 Aug;164(4):1447-57. PMID:12930751
- ↑ Caria S, Magtoto CM, Samiei T, Portela M, Lim KYB, How JY, Stewart BZ, Humbert PO, Richardson HE, Kvansakul M. Drosophila melanogaster Guk-holder interacts with the Scribbled PDZ1 domain and regulates epithelial development with Scribbled and Discs Large. J Biol Chem. 2018 Jan 29. pii: M117.817528. doi: 10.1074/jbc.M117.817528. PMID:29378849 doi:http://dx.doi.org/10.1074/jbc.M117.817528
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