Rose Homoelle

2 months ago | biorxiv.org | George Georgiou |Tetsuya Hirata |Erik J. Soderblom |Rose Homoelle

AbstractDuring mitosis, eukaryotic cells cease anterograde trafficking from the endoplasmic reticulum (ER) towards the Golgi. This cessation corresponds with the dispersal of the COPII transport protein, Sec24C, from juxtanuclear ER exit sites (ERES) into a diffusely cytosolic pool. Redistribution of Sec24 paralogs and other core COPII proteins may underlie the mitotic pause in secretion and may be required for the equal inheritance of endomembrane organelles and machinery by both daughter cells.