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XB-ART-49999
Cell Cycle January 1, 2014; 13 (16): 2616-25.
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Loss of Extended Synaptotagmins ESyt2 and ESyt3 does not affect mouse development or viability, but in vitro cell migration and survival under stress are affected.

Herdman C , Tremblay MG , Mishra PK , Moss T .


Abstract
The Extended Synaptotagmins (Esyts) are a family of multi-C2 domain membrane proteins with orthologs in organisms from yeast to human. Three Esyt genes exist in mouse and human and these have most recently been implicated in the formation of junctions between endoplasmic reticulum and plasma membrane, as well as the Ca(2+) dependent replenishment of membrane phospholipids. The data are consistent with a function in extracellular signal transduction and cell adhesion, and indeed Esyt2 was previously implicated in both these functions in Xenopus. Despite this, little is known of the function of the Esyts in vivo. We have generated mouse lines carrying homozygous deletions in one or both of the genes encoding the highly homologous Esyt2 and Esyt3 proteins. Surprisingly, esyt2(-/-)/esyt3(-/-) mice develop normally and are both viable and fertile. In contrast, esyt2(-/-)/esyt3(-/-) mouse embryonic fibroblasts display a reduced ability to migrate in standard in vitro assays, and are less resistant to stringent culture conditions and to oxidative stress than equivalent wild type fibroblasts.

PubMed ID: 25486202
PMC ID: PMC4614831
Article link: Cell Cycle


Species referenced: Xenopus
Genes referenced: akt1 egf esyt1 esyt2 esyt3 fbrs mapk1


Article Images: [+] show captions
References [+] :
Bisson, Mice lacking both mixed-lineage kinase genes Mlk1 and Mlk2 retain a wild type phenotype. 2008, Pubmed