ER-mitochondria contacts: Actin dynamics at the ER control mitochondrial fission via calcium release.
- Author(s): Steffen, Janos
- Koehler, Carla M
- et al.
Published Web Locationhttps://doi.org/10.1083/jcb.201711075
The formin-like protein INF2 is an important player in the polymerization of actin filaments. In this issue, Chakrabarti et al. (2018. J. Cell Biol. https://doi.org/10.1083/jcb.201709111) demonstrate that INF2 mediates actin polymerization at the endoplasmic reticulum (ER), resulting in increased ER-mitochondria contacts, calcium uptake by mitochondria, and mitochondrial division.