Results 61 to 70 of about 118,231 (380)

Epigenetically-inherited centromere and neocentromere DNA replicates earliest in S-phase. [PDF]

open access: yesPLoS Genetics, 2010
Eukaryotic centromeres are maintained at specific chromosomal sites over many generations. In the budding yeast Saccharomyces cerevisiae, centromeres are genetic elements defined by a DNA sequence that is both necessary and sufficient for function ...
Amnon Koren   +5 more
doaj   +1 more source

Mechanism of centromere recruitment of the CENP-A chaperone HJURP and its implications for centromere licensing

open access: yesNature Communications, 2019
Nucleosomes containing the histone H3 variant CENP-A are the epigenetic mark of centromeres, the kinetochore assembly sites required for chromosome segregation.
D. Pan   +5 more
semanticscholar   +1 more source

The CINs of the centromere [PDF]

open access: yesBiochemical Society Transactions, 2013
Replication stress is a significant contributor to genome instability. Recent studies suggest that the centromere is particularly susceptible to replication stress and prone to rearrangements and genome damage, as well as chromosome loss. This effect is enhanced by loss of heterochromatin.
openaire   +3 more sources

Centromere Assembly and Propagation [PDF]

open access: yesCell, 2007
Centromere assembly provides a unique example of how elaborate protein structures can be assembled onto DNA, independent of sequence, and then stably propagated through numerous cell divisions. Here, we review the possible epigenetic strategies that organisms ranging from yeast to human use to assemble and propagate active centromeres.
Danesh Moazed, Corey A. Morris
openaire   +3 more sources

A family case of fertile human 45,X,psu dic(15;Y) males [PDF]

open access: yes, 2006
We report on a familial case including four male probands from three generations with a 45,X,psu dic(15;Y)(p11.2;q12) karyotype. 45,X is usually associated with a female phenotype and only rarely with maleness, due to translocation of small Y chromosomal
Andersson M   +29 more
core   +1 more source

Histone H3K9 and H4 Acetylations and Transcription Facilitate the Initial CENP-AHCP−3 Deposition and De Novo Centromere Establishment in Caenorhabditis elegans Artificial Chromosomes

open access: yesEpigenetics & Chromatin, 2018
Background The centromere is the specialized chromatin region that directs chromosome segregation. The kinetochore assembles on the centromere, attaching chromosomes to microtubules in mitosis.
Jing Zhu   +2 more
doaj   +1 more source

Structure and evolution of metapolycentromeres

open access: yesВавиловский журнал генетики и селекции
Metapolycentromeres consist of multiple sequential domains of centromeric chromatin associated with a centromere-specific variant of histone H3 (CENP-A), functioning collectively as a single centromere.
E. O. Grishko, P. M. Borodin
doaj   +1 more source

Holocentric Chromosomes Probably Do Not Prevent Centromere Drive in Cyperaceae

open access: yesFrontiers in Plant Science, 2021
Centromere drive model describes an evolutionary process initiated by centromeric repeats expansion, which leads to the recruitment of excess kinetochore proteins and consequent preferential segregation of an expanded centromere to the egg during female ...
Marie Krátká   +4 more
doaj   +1 more source

Keeping the Centromere under Control: A Promising Role for DNA Methylation

open access: yesCells, 2019
In order to maintain cell and organism homeostasis, the genetic material has to be faithfully and equally inherited through cell divisions while preserving its integrity.
A. Scelfo, D. Fachinetti
semanticscholar   +1 more source

Csi1 links centromeres to the nuclear envelope for centromere clustering [PDF]

open access: yesJournal of Cell Biology, 2012
In the fission yeast Schizosaccharomyces pombe, the centromeres of each chromosome are clustered together and attached to the nuclear envelope near the site of the spindle pole body during interphase. The mechanism and functional importance of this arrangement of chromosomes are poorly understood.
Scott P. Kallgren   +8 more
openaire   +3 more sources

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