Mechanisms underlying spindle assembly and robustness

VA Valdez, L Neahring, S Petry… - Nature Reviews Molecular …, 2023 - nature.com
The microtubule-based spindle orchestrates chromosome segregation during cell division.
Following more than a century of study, many components and pathways contributing to …

[HTML][HTML] Macromolecular condensation buffers intracellular water potential

JL Watson, E Seinkmane, CT Styles, A Mihut… - Nature, 2023 - nature.com
Optimum protein function and biochemical activity critically depends on water availability
because solvent thermodynamics drive protein folding and macromolecular interactions …

Microtubule nucleation for spindle assembly: one molecule at a time

J Kraus, R Alfaro-Aco, B Gouveia, S Petry - Trends in biochemical sciences, 2023 - cell.com
The cell orchestrates the dance of chromosome segregation with remarkable speed and
fidelity. The mitotic spindle is built from scratch after interphase through microtubule (MT) …

Phase separation of TPX2 enhances and spatially coordinates microtubule nucleation

MR King, S Petry - Nature communications, 2020 - nature.com
Phase separation of substrates and effectors is proposed to enhance biological reaction
rates and efficiency. Targeting protein for Xklp2 (TPX2) is an effector of branching …

A hydrodynamic instability drives protein droplet formation on microtubules to nucleate branches

SU Setru, B Gouveia, R Alfaro-Aco, JW Shaevitz… - Nature physics, 2021 - nature.com
Liquid–liquid phase separation, occurs not only in bulk liquid, but also on surfaces. In
physiology, the nature and function of condensates on cellular structures remain …

Augmin accumulation on long-lived microtubules drives amplification and kinetochore-directed growth

AF David, P Roudot, WR Legant, E Betzig… - Journal of Cell …, 2019 - rupress.org
Dividing cells reorganize their microtubule cytoskeleton into a bipolar spindle, which moves
one set of sister chromatids to each nascent daughter cell. Early spindle assembly models …

Biochemical reconstitution of branching microtubule nucleation

R Alfaro-Aco, A Thawani, S Petry - Elife, 2020 - elifesciences.org
Microtubules are nucleated from specific locations at precise times in the cell cycle.
However, the factors that constitute these microtubule nucleation pathways and their mode …

Microtubule dynamics scale with cell size to set spindle length and assembly timing

B Lacroix, G Letort, L Pitayu, J Sallé, M Stefanutti… - Developmental cell, 2018 - cell.com
Successive cell divisions during embryonic cleavage create increasingly smaller cells, so
intracellular structures must adapt accordingly. Mitotic spindle size correlates with cell size …

Self-organization of cellular units

TJ Mitchison, CM Field - Annual review of cell and …, 2021 - annualreviews.org
The purpose of this review is to explore self-organizing mechanisms that pattern
microtubules (MTs) and spatially organize animal cell cytoplasm, inspired by recent …

How microtubules build the spindle branch by branch

SM Travis, BP Mahon, S Petry - Annual review of cell and …, 2022 - annualreviews.org
The microtubule (MT) cytoskeleton provides the architecture that governs intracellular
organization and the regulated motion of macromolecules through the crowded cytoplasm …