Search Results - "McIntosh, J Richard"
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Regulation of microtubule dynamics, mechanics and function through the growing tip
Published in Nature reviews. Molecular cell biology (01-12-2021)“…Microtubule dynamics and their control are essential for the normal function and division of all eukaryotic cells. This plethora of functions is, in large…”
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Mitosis
Published in Cold Spring Harbor perspectives in biology (01-09-2016)“…SUMMARYAll eukaryotic cells prepare for cell division by forming a "mitotic spindle"-a bipolar machine made from microtubules (MTs) and many associated…”
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Microtubules grow by the addition of bent guanosine triphosphate tubulin to the tips of curved protofilaments
Published in The Journal of cell biology (06-08-2018)“…We used electron tomography to examine microtubules (MTs) growing from pure tubulin in vitro as well as two classes of MTs growing in cells from six species…”
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Electron tomography reveals aspects of spindle structure important for mechanical stability at metaphase
Published in Molecular biology of the cell (01-02-2020)“…Metaphase spindles exert pole-directed forces on still-connected sister kinetochores. The spindle must counter these forces with extensive forces to prevent…”
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Mechanisms of microtubule dynamics and force generation examined with computational modeling and electron cryotomography
Published in Nature communications (28-07-2020)“…Microtubules are dynamic tubulin polymers responsible for many cellular processes, including the capture and segregation of chromosomes during mitosis. In…”
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Arrangement of Photosystem II and ATP Synthase in Chloroplast Membranes of Spinach and Pea
Published in The Plant cell (01-04-2010)“…We used cryoelectron tomography to reveal the arrangements of photosystem II (PSII) and ATP synthase in vitreous sections of intact chloroplasts and…”
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Mechanisms of chromosome biorientation and bipolar spindle assembly analyzed by computational modeling
Published in eLife (13-02-2020)“…The essential functions required for mitotic spindle assembly and chromosome biorientation and segregation are not fully understood, despite extensive study…”
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Molecular Architecture of Axonemes Revealed by Cryoelectron Tomography
Published in Science (American Association for the Advancement of Science) (18-08-2006)“…Eukaryotic flagella and cilia are built on a 9 + 2 array of microtubules plus >250 accessory proteins, forming a biological machine called the axoneme. Here we…”
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Brownian dynamics simulation of protofilament relaxation during rapid freezing
Published in PloS one (12-02-2021)“…Electron cryo-microscopy (Cryo-EM) is a powerful method for visualizing biological objects with up to near-angstrom resolution. Instead of chemical fixation,…”
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10
Ultrastructural Analysis of Microtubule Ends
Published in Methods in molecular biology (Clifton, N.J.) (01-01-2020)“…Microtubules can be detected in light microscopes, but the limited resolution of these instruments means that the polymers appear as lines whose width is…”
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Augmin-dependent microtubule nucleation at microtubule walls in the spindle
Published in The Journal of cell biology (08-07-2013)“…The formation of a functional spindle requires microtubule (MT) nucleation from within the spindle, which depends on augmin. How augmin contributes to MT…”
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Kinesin-8 effects on mitotic microtubule dynamics contribute to spindle function in fission yeast
Published in Molecular biology of the cell (07-11-2016)“…Kinesin-8 motor proteins destabilize microtubules. Their absence during cell division is associated with disorganized mitotic chromosome movements and…”
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Continuous endosomes form functional subdomains and orchestrate rapid membrane trafficking in trypanosomes
Published in eLife (15-04-2024)“…Endocytosis is a common process observed in most eukaryotic cells, although its complexity varies among different organisms. In , the endocytic machinery is…”
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Conserved and divergent features of kinetochores and spindle microtubule ends from five species
Published in The Journal of cell biology (18-02-2013)“…Interfaces between spindle microtubules and kinetochores were examined in diverse species by electron tomography and image analysis. Overall structures were…”
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Correction: Brownian dynamics simulation of protofilament relaxation during rapid freezing
Published in PloS one (17-06-2021)“…[This corrects the article DOI: 10.1371/journal.pone.0247022.]…”
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CD4+ T-cell synapses involve multiple distinct stages
Published in Proceedings of the National Academy of Sciences - PNAS (11-10-2011)“…One very striking feature of T-cell recognition is the formation of an immunological synapse between a T cell and a cell that it is recognizing. Formation of…”
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Biophysics of mitosis
Published in Quarterly reviews of biophysics (01-05-2012)“…Mitosis is the process by which eukaryotic cells organize and segregate their chromosomes in preparation for cell division. It is accomplished by a cellular…”
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Probing the macromolecular organization of cells by electron tomography
Published in Current opinion in cell biology (01-02-2009)“…A major goal in cell biology is to understand the functional organization of macromolecular complexes in vivo . Electron microscopy is helping cell biologists…”
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A Brief History of Research on Mitotic Mechanisms
Published in Biology (Basel, Switzerland) (21-12-2016)“…This chapter describes in summary form some of the most important research on chromosome segregation, from the discovery and naming of mitosis in the…”
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Three-dimensional cellular architecture of the flagellar pocket and associated cytoskeleton in trypanosomes revealed by electron microscope tomography
Published in Journal of cell science (15-04-2009)“…This study uses electron tomography linked to a variety of other EM methods to provide an integrated view of the flagellar pocket and basal body area of the…”
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