Results 91 to 100 of about 20,432 (180)

Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

open access: yeseLife, 2012
During meiosis, a single round of DNA replication is followed by two consecutive rounds of nuclear divisions called meiosis I and meiosis II. In meiosis I, homologous chromosomes segregate, while sister chromatids remain together.
Matthew P Miller   +3 more
doaj   +1 more source

TRIP13 is a protein-remodeling AAA+ ATPase that catalyzes MAD2 conformation switching. [PDF]

open access: yes, 2015
The AAA+ family ATPase TRIP13 is a key regulator of meiotic recombination and the spindle assembly checkpoint, acting on signaling proteins of the conserved HORMA domain family.
Corbett, Kevin D   +5 more
core   +2 more sources

The Saccharomyces cerevisiae kinetochore

open access: yesFEBS Letters, 1996
Accurate chromosome segregation is DApenDAnt on a specialized chromosomal structure, the kinetochore/centromere. The only essential constituent of the S. cerevisiae kinetochore established today is CBF3, a multisubunit complex that binds to S. cerevisiae centromere DNA.
Lechner, Johannes, Ortiz, Jennifer
openaire   +2 more sources

A molecular basis for the differential roles of Bub1 and BubR1 in the spindle assembly checkpoint

open access: yeseLife, 2015
The spindle assembly checkpoint (SAC) monitors and promotes kinetochore–microtubule attachment during mitosis. Bub1 and BubR1, SAC components, originated from duplication of an ancestor gene.
Katharina Overlack   +7 more
doaj   +1 more source

Mechanical stability of bipolar spindle assembly

open access: yes, 2016
Assembly and stability of mitotic spindle is governed by the interplay of various intra-cellular forces, e.g. the forces generated by motor proteins by sliding overlapping anti-parallel microtubules (MTs) polymerized from the opposite centrosomes, the ...
Malgaretti, Paolo, Muhuri, Sudipto
core   +1 more source

The dependence of shugoshin on Bub1-kinase activity is dispensable for the maintenance of spindle assembly checkpoint response in Cryptococcus neoformans.

open access: yesPLoS Genetics
During chromosome segregation, the spindle assembly checkpoint (SAC) detects errors in kinetochore-microtubule attachments. Timely activation and maintenance of the SAC until defects are corrected is essential for genome stability.
Satya Dev Polisetty   +5 more
doaj   +1 more source

Kinetochore or Centromere? [PDF]

open access: yesNature, 1939
IN his recent communication1, Dr. Mather seems to have no argument against the applicability of ‘kinetochore’. He sponsors “centromere” largely because it is used by a number of investigators. But I, for one, am not convinced that it is the “best term in use to-day”. To Dr. Mather ‘centromere’ may imply a visible particle, but to many it will connote a
openaire   +1 more source

Chromosome segregation during spermatogenesis occurs through a unique center-kinetic mechanism in holocentric moth species.

open access: yesPLoS Genetics
Precise regulation of chromosome dynamics in the germline is essential for reproductive success across species. Yet, the mechanisms underlying meiotic chromosomal events such as homolog pairing and chromosome segregation are not fully understood in many ...
Clio Hockens   +4 more
doaj   +1 more source

Fission yeast Wee1 is required for stable kinetochore-microtubule attachment

open access: yesOpen Biology
Wee1 is a cell cycle regulator that phosphorylates Cdk1/Cdc2 and inhibits G2/M transition. Loss of Wee1 in fission yeast results in an early onset of mitosis.
Masahiro Takado   +3 more
doaj   +1 more source

Keeping kinetochores on track

open access: yesEuropean Journal of Cell Biology, 2012
The multiple functions of kinetochores are reflected in their complex composition, with over a hundred different proteins, which self-associate in several functional subcomplexes. Most of these kinetochore proteins were identified over the last 10-12 years using a combination of genetic, cell biological, biochemical, and bioinformatic approaches in ...
openaire   +4 more sources

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