Results 21 to 30 of about 20,432 (180)
How to halve ploidy : lessons from budding yeast meiosis [PDF]
Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells.
Arumugam, Prakash +2 more
core +1 more source
Phosphatases in Mitosis: Roles and Regulation
Mitosis requires extensive rearrangement of cellular architecture and of subcellular structures so that replicated chromosomes can bind correctly to spindle microtubules and segregate towards opposite poles.
Margarida Moura, Carlos Conde
doaj +1 more source
Kinetochore-bound Mps1 regulates kinetochore–microtubule attachments via Ndc80 phosphorylation [PDF]
Dividing cells detect and correct erroneous kinetochore–microtubule attachments during mitosis, thereby avoiding chromosome missegregation. The Aurora B kinase phosphorylates microtubule-binding elements specifically at incorrectly attached kinetochores, promoting their release and providing another chance for proper attachments to form.
Krishna K. Sarangapani +4 more
openaire +2 more sources
Exotic mitotic mechanisms [PDF]
The emergence of eukaryotes around two billion years ago provided new challenges for the chromosome segregation machineries: the physical separation of multiple large and linear chromosomes from the microtubule-organizing centres by the nuclear envelope.
Drechsler, Hauke, McAinsh, Andrew D.
core +1 more source
The first meiotic division in human oocytes is highly error-prone and contributes to the uniquely high incidence of aneuploidy observed in human pregnancies.
Jessica Patel +3 more
doaj +1 more source
Co-silencing of human Bub3 and dynein highlights an antagonistic relationship in regulating kinetochore-microtubule attachments [PDF]
We previously reported that the spindle assembly checkpoint protein Bub3 is involved in regulating kinetochore-microtubule (KT-MT) attachments. Also, Bub3 was reported to interact with the microtubule motor protein dynein.
Barisic +27 more
core +1 more source
Structural plasticity of the living kinetochore [PDF]
The kinetochore is a large, evolutionarily conserved protein structure that connects chromosomes with microtubules. During chromosome segregation, outer kinetochore components track depolymerizing ends of microtubules to facilitate the separation of ...
Akiyoshi +90 more
core +1 more source
Step-wise assembly, maturation and dynamic behavior of the human CENP-P/O/R/Q/U kinetochore sub-complex [PDF]
Kinetochores are multi-protein megadalton assemblies that are required for attachment of microtubules to centromeres and, in turn, the segregation of chromosomes in mitosis. Kinetochore assembly is a cell cycle regulated multi-step process.
Bancroft, James M. +14 more
core +9 more sources
Prime movers : mechanochemistry of mitotic kinesins [PDF]
Mitotic spindles are self-organizing protein machines that harness teams of multiple force generators to drive chromosome segregation. Kinesins are key members of these force-generating teams.
A Blangy +184 more
core +1 more source
Human Shugoshin Mediates Kinetochore-Driven Formation of Kinetochore Microtubules [PDF]
The conserved protein Shugoshin (Sgo) plays a role in the maintenance of centromeric cohesion in mitosis and meiosis. Human Shugoshin (hSgo) was first identified as an overexpressed protein in breast cancers. Here we demonstrate that hSgo mediates kinetochore-driven formation of kinetochore -microtubules (MTs) during bipolar spindle assembly.
Hideaki, Suzuki +5 more
openaire +2 more sources

