Fischer et al. uncover a fundamental mechanism of membrane fusion during nuclear pore complex (NPC) assembly. Brl1 and Brr6 form ring-shaped, membrane-remodeling complexes that interact and bridge the...

Fischer et al. uncover a fundamental mechanism of membrane fusion during nuclear pore complex (NPC) assembly. Brl1 and Brr6 form ring-shaped, membrane-remodeling complexes that interact and bridge the nuclear envelope at NPC-assembly sites to mediate fusion. This pathway is conserved in humans via the metazoan fusogen CLCC1.

The cryo-electron microscopy structure of the bridge-like lipid-transfer protein VPS13A in complex with the scramblase XK—coupled with molecular dynamics simulations—suggests that VPS13A-transported l...

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