Transmembrane and coiled-coil domains protein 1 (TMCC1)

Endoplasmic reticulum membrane protein that boosts endoplasmic reticulum-associated endosome fission (PubMed:30220460). Localizes to contact sites between the endoplasmic reticulum and endosomes and functions by promoting recruitment of the endoplasmic reticulum to endosome tubules for fission (PubMed:30220460).

Endosome membrane fission of early and late endosomes is essential to separate areas destined for lysosomal degradation from carriers to be recycled to the plasma membrane (PubMed:30220460). .