Results 31 to 40 of about 51,411 (295)
SEQUENCE OF CENTROMERE SEPARATION: ROLE OF CENTROMERIC HETEROCHROMATIN [PDF]
ABSTRACT The late metaphase-early anaphase cells from various tissues of male Mus musculus, M. poschiavinus, M. spretus, M. castaneus, female and male Bos taurus (cattle) and female Myopus schisticolor (wood lemming) were analyzed for centromeres that showed separation into two daughter centromeres and those that did not show such ...
openaire +3 more sources
Centromere Assembly and Propagation [PDF]
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
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
Centromere protein A (CENP-A) is a histone H3 variant that defines centromeric chromatin and is essential for centromere function. In most eukaryotes, CENP-A-containing chromatin is epigenetically maintained, and centromere identity is inherited from one
Reinier F Prosée+7 more
doaj +1 more source
The CINs of the centromere [PDF]
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
Csi1 links centromeres to the nuclear envelope for centromere clustering [PDF]
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
Structure and evolution of metapolycentromeres
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
Possible role of human ribonuclease dicer in the regulation of R loops
R loops play an important role in regulating key cellular processes such as replication, transcription, centromere stabilization, or control of telomere length. However, the unscheduled accumulation of R loops can cause many diseases, including cancer, and neurodegenerative or inflammatory disorders. Interestingly, accumulating data indicate a possible
Klaudia Wojcik+2 more
wiley +1 more source
Holocentric Chromosomes Probably Do Not Prevent Centromere Drive in Cyperaceae
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
Background In complex diseases, it is challenging to assess a patient's disease state, trajectory, treatment exposures, and risk of multiple outcomes simultaneously, efficiently and at the point of care. Methods We developed an interactive patient‐level data visualization and analysis tool (VAT) that automates illustration of a scleroderma patient's ...
Ji Soo Kim+18 more
wiley +1 more source