Search Results - "Petry, Sabine"
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Mechanisms of Mitotic Spindle Assembly
Published in Annual review of biochemistry (02-06-2016)“…Life depends on cell proliferation and the accurate segregation of chromosomes, which are mediated by the microtubule (MT)-based mitotic spindle and ∼200…”
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Phase separation of TPX2 enhances and spatially coordinates microtubule nucleation
Published in Nature communications (14-01-2020)“…Phase separation of substrates and effectors is proposed to enhance biological reaction rates and efficiency. Targeting protein for Xklp2 (TPX2) is an effector…”
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Structural analysis of the role of TPX2 in branching microtubule nucleation
Published in The Journal of cell biology (03-04-2017)“…The mitotic spindle consists of microtubules (MTs), which are nucleated by the γ-tubulin ring complex (γ-TuRC). How the γ-TuRC gets activated at the right time…”
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4
Building the Microtubule Cytoskeleton Piece by Piece
Published in The Journal of biological chemistry (10-07-2015)“…The microtubule (MT) cytoskeleton gives cells their shape, organizes the cellular interior, and segregates chromosomes. These functions rely on the precise…”
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5
Biochemical reconstitution of branching microtubule nucleation
Published in eLife (14-01-2020)“…Microtubules are nucleated from specific locations at precise times in the cell cycle. However, the factors that constitute these microtubule nucleation…”
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HURP facilitates spindle assembly by stabilizing microtubules and working synergistically with TPX2
Published in Nature communications (08-11-2024)“…In vertebrate spindles, most microtubules are formed via branching microtubule nucleation, whereby microtubules nucleate along the side of pre-existing…”
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Branching Microtubule Nucleation in Xenopus Egg Extracts Mediated by Augmin and TPX2
Published in Cell (14-02-2013)“…The microtubules that comprise mitotic spindles in animal cells are nucleated at centrosomes and by spindle assembly factors that are activated in the vicinity…”
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Spatiotemporal organization of branched microtubule networks
Published in eLife (08-05-2019)“…To understand how chromosomes are segregated, it is necessary to explain the precise spatiotemporal organization of microtubules (MTs) in the mitotic spindle…”
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Motorless transport of microtubules along tubulin, RanGTP, and salt gradients
Published in Nature communications (01-11-2024)“…Microtubules are dynamic filaments that assemble spindles for eukaryotic cell division. As the concentration profiles of soluble tubulin and regulatory…”
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Structural basis of protein condensation on microtubules underlying branching microtubule nucleation
Published in Nature communications (21-06-2023)“…Targeting protein for Xklp2 (TPX2) is a key factor that stimulates branching microtubule nucleation during cell division. Upon binding to microtubules (MTs),…”
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11
augmin complex plays a critical role in spindle microtubule generation for mitotic progression and cytokinesis in human cells
Published in Proceedings of the National Academy of Sciences - PNAS (28-04-2009)“…The mitotic spindle is constructed from microtubules (MTs) nucleated from centrosomes, chromosome proximal regions, and preexisting spindle MTs. Augmin, a…”
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The transition state and regulation of γ-TuRC-mediated microtubule nucleation revealed by single molecule microscopy
Published in eLife (15-06-2020)“…Determining how microtubules (MTs) are nucleated is essential for understanding how the cytoskeleton assembles. While the MT nucleator, γ-tubulin ring complex…”
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13
Integrated model of the vertebrate augmin complex
Published in Nature communications (13-04-2023)“…Accurate segregation of chromosomes is required to maintain genome integrity during cell division. This feat is accomplished by the microtubule-based spindle…”
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14
Uniform intensity in multifocal microscopy using a spatial light modulator
Published in PloS one (11-03-2020)“…Multifocal microscopy (MFM) offers high-speed three-dimensional imaging through the simultaneous image capture from multiple focal planes. Conventional MFM…”
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Acentrosomal spindles assemble from branching microtubule nucleation near chromosomes in Xenopus laevis egg extract
Published in Nature communications (21-06-2023)“…Microtubules are generated at centrosomes, chromosomes, and within spindles during cell division. Whereas microtubule nucleation at the centrosome is well…”
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The conserved centrosomin motif, γTuNA, forms a dimer that directly activates microtubule nucleation by the γ-tubulin ring complex (γTuRC)
Published in eLife (14-12-2022)“…To establish the microtubule cytoskeleton, the cell must tightly regulate when and where microtubules are nucleated. This regulation involves controlling the…”
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Augmin promotes meiotic spindle formation and bipolarity in Xenopus egg extracts
Published in Proceedings of the National Academy of Sciences - PNAS (30-08-2011)“…Female meiotic spindles in many organisms form in the absence of centrosomes, the organelle typically associated with microtubule (MT) nucleation. Previous…”
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A hydrodynamic instability drives protein droplet formation on microtubules to nucleate branches
Published in Nature physics (01-04-2021)Get full text
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Electronic Energy Migration in Microtubules
Published in ACS central science (22-03-2023)“…The repeating arrangement of tubulin dimers confers great mechanical strength to microtubules, which are used as scaffolds for intracellular macromolecular…”
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Crystal structure of the ribosome recycling factor bound to the ribosome
Published in Nature structural & molecular biology (01-08-2007)“…In bacteria, disassembly of the ribosome at the end of translation is facilitated by an essential protein factor termed ribosome recycling factor (RRF), which…”
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