ArticleScientific reports2016
Dlg5 maintains apical polarity by promoting membrane localization of Crumbs during Drosophila oogenesis.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Analysis of the impact of gene evolution on reproductive effects reveals prevalent sexual and germline-soma conflicts.Nature ecology & evolution · 2026Article
- Mitochondrial morphology dynamics and ROS regulate apical polarity and differentiation in Drosophila follicle cells.Development (Cambridge, England) · 2024Article
- Multiple functions of the scaffold protein Discs large 5 in the control of growth, cell polarity and cell adhesion in Drosophila melanogaster.BMC developmental biology · 2020Article
- The polarity protein Dlg5 regulates collective cell migration during Drosophila oogenesis.PloS one · 2019Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
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Abstract
Apical-basal polarity plays critical roles in the functions of epithelial tissues. However, the mechanisms of epithelial polarity establishment and maintenance remain to be fully elucidated. Here we show that the membrane-associated guanylate kinase (MAGUK) family protein Dlg5 is required for the maintenance of apical polarity of follicle epithelium during Drosophila oogenesis. Dlg5 localizes at the apical membrane and adherens junction (AJ) of follicle epithelium in early stage egg chambers. Specifically, we demonstrate that the major function of Dlg5 is to promote apical membrane localization of Crumbs, since overexpression of Crumbs but not other major apical or AJ components could rescue epithelial polarity defects resulted from loss of Dlg5. Furthermore, we performed a structure-function analysis of Dlg5 and found that the C-terminal PDZ3 and PDZ4 domains are required for all Dlg5's functions as well as its ability to localize to apical membrane. The N-terminal coiled-coil motif could be individually targeted to the apical membrane, while the central linker region could be targeted to AJ. Lastly, the MAGUK core domains of PDZ4-SH3-GUK could be individually targeted to apical, AJ and basolateral membranes.
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