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Data on the association of the nuclear envelope protein Sun1 with nucleoli.


ABSTRACT: SUN proteins participate in diverse cellular activities, many of which are connected to the nuclear envelope. Recently, the family member SUN1 has been linked to novel biological activities. These include the regulation of nucleoli, intranuclear compartments that assemble ribosomal subunits. We show that SUN1 associates with nucleoli in several mammalian epithelial cell lines. This nucleolar localization is not shared by all cell types, as SUN1 concentrates at the nuclear envelope in ganglionic neurons and non-neuronal satellite cells. Database analyses and Western blotting emphasize the complexity of SUN1 protein profiles in different mammalian cells. We constructed a STRING network which identifies SUN1-related proteins as part of a larger network that includes several nucleolar proteins. Taken together, the current data highlight the diversity of SUN1 proteins and emphasize the possible links between SUN1 and nucleoli.

SUBMITTER: Moujaber O 

PROVIDER: S-EPMC5447391 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Data on the association of the nuclear envelope protein Sun1 with nucleoli.

Moujaber Ossama O   Omran Nawal N   Kodiha Mohamed M   Pié Brigitte B   Cooper Ellis E   Presley John F JF   Stochaj Ursula U  

Data in brief 20170519


SUN proteins participate in diverse cellular activities, many of which are connected to the nuclear envelope. Recently, the family member SUN1 has been linked to novel biological activities. These include the regulation of nucleoli, intranuclear compartments that assemble ribosomal subunits. We show that SUN1 associates with nucleoli in several mammalian epithelial cell lines. This nucleolar localization is not shared by all cell types, as SUN1 concentrates at the nuclear envelope in ganglionic  ...[more]

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