Microtubule nucleation from the nuclear envelope in fission yeast involves repurposing of nuclear export proteins for a non-export-related function, docking cytoplasmic proteins at nuclear pore complexes.
Bethany Sump, Donna G Brickner ... Jason H Brickner
During epigenetic transcriptional memory in budding yeast, histone H3 lysine 4 dimethylation - dependent on Nup1000 and independent of RNA polymerase II - regulates binding of a critical transcription factor and, once established, is mitotically heritable for at least four cell divisions.
The Ran GTPase plays a role in defining the physical properties of the nuclear pore complex transport channel by remodeling the binding interactions of importin-β with the nucleoporin Nup153 at the nuclear face of the pore.
Nuclear pores assemble asymmetrically, by an inside-out evagination of the inner nuclear membrane that grows in diameter and depth until it fuses with the flat outer nuclear membrane.
ELYS, a multifunctional protein with critical roles in the cell cycle, is essential for the vigorous proliferation and survival of difficult-to-treat cancers carrying mutations in the KRAS oncogene, making it a compelling target for novel drug treatments.