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Verfasst von:Cerdà, Joan [VerfasserIn]   i
 Reidenbach, Sonja [VerfasserIn]   i
 Franke, Werner [VerfasserIn]   i
Titel:Cadherin-catenin complexes during zebrafish oogenesis
Titelzusatz:heterotypic junctions between oocytes and follicle cells1
Verf.angabe:Joan Cerdà, Sonja Reidenbach, Silke Prätzel, and Werner W. Franke
E-Jahr:1999
Jahr:01 September 1999
Umfang:13 S.
Teil:volume:61
 year:1999
 number:3
 pages:692-704
 extent:13
Fussnoten:Gesehen am 11.02.2021
Titel Quelle:Enthalten in: Biology of reproduction
Ort Quelle:Cary, NC : Oxford University Press, 1969
Jahr Quelle:1999
Band/Heft Quelle:61(1999), 3, Seite 692-704
ISSN Quelle:1529-7268
Abstract:During vertebrate oogenesis, the germ cells and associated somatic cells remain connected by a variety of adhering junctional complexes. However, the molecular composition of these cellular structures is largely unknown. To identify the proteins forming the heterotypic adherens junctions between oocytes and follicle cells in the zebrafish (Danio rerio), the cDNAs encoding αE-catenin and plakoglobin were isolated. Using these cDNAs, in combination with the previously isolated β-catenin cDNA, and antibodies specific for α- and β-catenin, plakoglobin, and N- and E-cadherin, we found differences in catenin and plakoglobin gene expression during oogenesis. The immunolocalization of these plaque proteins, as well as of cadherins, in the ovarian follicle indicated an enrichment of α- and β-catenin and of E-cadherin-like protein(s) in the oocyte cortex, notably at sites of oocyte-follicle cell contacts, suggesting the presence of hitherto unknown heterotypic adherens junctions between these cells. By contrast, plakoglobin and N-cadherin localization was restricted to cell-cell contacts in the follicle cell layer. During oocyte maturation, mRNAs for αE- and β-catenin and plakoglobin accumulated, and all three plaque-forming proteins were stored in unfertilized eggs, either in complexed forms with cadherins or as free cytoplasmic pools. These findings suggest possible roles of these junctional proteins during early embryogenesis.
DOI:doi:10.1095/biolreprod61.3.692
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1095/biolreprod61.3.692
 DOI: https://doi.org/10.1095/biolreprod61.3.692
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1748093630
Verknüpfungen:→ Zeitschrift

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