Dzip1 and Fam92 form a ciliary transition zone complex with cell type specific roles in Drosophila.
Elife
; 82019 12 10.
Article
em En
| MEDLINE
| ID: mdl-31821146
ABSTRACT
Cilia and flagella are conserved eukaryotic organelles essential for cellular signaling and motility. Cilia dysfunctions cause life-threatening ciliopathies, many of which are due to defects in the transition zone (TZ), a complex structure of the ciliary base. Therefore, understanding TZ assembly, which relies on ordered interactions of multiprotein modules, is of critical importance. Here, we show that Drosophila Dzip1 and Fam92 form a functional module which constrains the conserved core TZ protein, Cep290, to the ciliary base. We identify cell type specific roles of this functional module in two different tissues. While it is required for TZ assembly in all Drosophila ciliated cells, it also regulates basal-body growth and docking to the plasma membrane during spermatogenesis. We therefore demonstrate a novel regulatory role for Dzip1 and Fam92 in mediating membrane/basal-body interactions and show that these interactions exhibit cell type specific functions in basal-body maturation and TZ organization.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Cílios
/
Proteínas de Transporte de Cátions
/
Proteínas de Drosophila
/
Drosophila
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
França