Ride the wave: Retrograde trafficking becomes Ca(2+) dependent with BAIAP3

The functions of four of the five proteins in the mammalian uncoordinated-13 (Munc13) family have been identified as priming factors in SNARE-dependent exocytosis. In this issue, Zhang et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201702099) show that the fifth member, BAIAP3 (brain-specif...

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Detalles Bibliográficos
Autor principal: Sørensen, Jakob B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Rockefeller University Press 2017
Materias:
Commentary
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5496633/
https://www.ncbi.nlm.nih.gov/pubmed/28626002
http://dx.doi.org/10.1083/jcb.201706007
Descripción
Sumario:The functions of four of the five proteins in the mammalian uncoordinated-13 (Munc13) family have been identified as priming factors in SNARE-dependent exocytosis. In this issue, Zhang et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201702099) show that the fifth member, BAIAP3 (brain-specific angiogenesis inhibitor I–associated protein 3), acts in retrograde trafficking by returning secretory vesicle material to the trans-Golgi network. In its absence, secretory vesicle formation is impaired, leading to accumulation of immature vesicles, or lysosomal vesicle degradation.

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