Results 21 to 30 of about 62,154 (329)

Spindle assembly defects leading to the formation of a monopolar mitotic apparatus [PDF]

open access: bronzeBiology of the Cell, 2008
Mitotic spindle formation in animal cells involves microtubule nucleation from two centrosomes that are positioned at opposite sides of the nucleus. Microtubules are captured by the kinetochores and stabilized. In addition, microtubules can be nucleated independently of the centrosome and stabilized by a gradient of Ran—GTP, surrounding the mitotic ...
Vanessa Tillement   +5 more
openalex   +3 more sources

Genetic Disorders Affecting Tubulin Cytoskeleton [PDF]

open access: yesJournal of Biomedical & Clinical Research, 2015
The tubulin cytoskeleton is vital for maintenance and dynamics of eukaryotic cells and molecular defects in its components can lead to serious conditions.
Maya Markova   +5 more
doaj   +3 more sources

A Balance between Nuclear and Cytoplasmic Volumes Controls Spindle Length. [PDF]

open access: yesPLoS ONE, 2016
Proper assembly of the spindle apparatus is crucially important for faithful chromosome segregation during anaphase. Thanks to the effort over the last decades, we have very detailed information about many events leading to spindle assembly and ...
Lucia Novakova   +5 more
doaj   +1 more source

USP11 deubiquitinates RAE1 and plays a key role in bipolar spindle formation. [PDF]

open access: yesPLoS ONE, 2018
Correct segregation of the mitotic chromosomes into daughter cells is a highly regulated process critical to safeguard genome stability. During M phase the spindle assembly checkpoint (SAC) ensures that all kinetochores are correctly attached before its ...
Anna Stockum   +2 more
doaj   +1 more source

Ral GTPase is essential for actin dynamics and Golgi apparatus distribution in mouse oocyte maturation

open access: yesCell Division, 2021
Background Ral family is a member of Ras-like GTPase superfamily, which includes RalA and RalB. RalA/B play important roles in many cell biological functions, including cytoskeleton dynamics, cell division, membrane transport, gene expression and signal ...
Ming-Hong Sun   +7 more
doaj   +1 more source

Ontogenetic Alteration of the Spindle Apparatus: Possible Relation to Chromosome Pairing

open access: goldCaryologia, 1973
SUMMARYAs the monocot Ornithogalum virens matures from seed germination to flowering there is a progressive reduction in the diameter of mitotic spindle apparatuses at the metaphase plate, and poles become more distinct. Apparently one result of this constriction of the spindle is a closer association of chromosomes on the metaphase plate which could ...
Stephen M. Stack   +2 more
openalex   +2 more sources

The association between muscle architecture and muscle spindle abundance

open access: yesScientific Reports, 2023
Across the human body, skeletal muscles have a broad range of biomechanical roles that employ complex proprioceptive control strategies to successfully execute a desired movement.
Roger W. P. Kissane   +3 more
doaj   +1 more source

A spindle-like apparatus guides bacterial chromosome segregation [PDF]

open access: yesNature Cell Biology, 2010
Until recently, a dedicated mitotic apparatus that segregates newly replicated chromosomes into daughter cells was believed to be unique to eukaryotic cells. Here we demonstrate that the bacterium Caulobacter crescentus segregates its chromosome using a partitioning (Par) apparatus that has surprising similarities to eukaryotic spindles.
Jerod L, Ptacin   +7 more
openaire   +2 more sources

Mechanisms of spindle bipolarity establishment in acentrosomal human cells

open access: yesMolecular & Cellular Oncology, 2020
Centrosomes are not absolutely essential for cell division; acentrosomal bipolar spindles can be established in oocytes and centrosome-eliminated somatic cells.
Kaho Hashimoto   +2 more
doaj   +1 more source

Uncovering the molecular machinery of the human spindle--an integration of wet and dry systems biology.

open access: yesPLoS ONE, 2012
The mitotic spindle is an essential molecular machine involved in cell division, whose composition has been studied extensively by detailed cellular biology, high-throughput proteomics, and RNA interference experiments.
Ana M Rojas   +20 more
doaj   +1 more source

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