Chromosome segregation analysis in human embryos obtained from couples involving male carriers of reciprocal or Robertsonian translocation. [PDF]
The objective of this study was to investigate the frequency and type of chromosome segregation patterns in cleavage stage embryos obtained from male carriers of Robertsonian (ROB) and reciprocal (REC) translocations undergoing preimplantation genetic ...
Ahmet Yilmaz+5 more
doaj +1 more source
Bacterial Chromosome Organization and Segregation [PDF]
If fully stretched out, a typical bacterial chromosome would be nearly 1 mm long, approximately 1,000 times the length of a cell. Not only must cells massively compact their genetic material, but they must also organize their DNA in a manner that is compatible with a range of cellular processes, including DNA replication, DNA repair, homologous ...
Badrinarayanan, Anjana+2 more
openaire +5 more sources
Separase prevents genomic instability by controlling replication fork speed [PDF]
Proper chromosome segregation is crucial for preserving genomic integrity, and errors in this process cause chromosome mis-segregation, which may contribute to cancer development.
Camerini, Serena+11 more
core +6 more sources
The microtubule cross-linker Feo controls the midzone stability, motor composition, and elongation of the anaphase B spindle in Drosophila embryos. [PDF]
Chromosome segregation during anaphase depends on chromosome-to-pole motility and pole-to-pole separation. We propose that in Drosophila embryos, the latter process (anaphase B) depends on a persistent kinesin-5-generated interpolar (ip) microtubule (MT)
Brust-Mascher, Ingrid+2 more
core +1 more source
Chromosome Segregation: Correcting Improperly Attached Chromosomes [PDF]
Two new studies show that Aurora B kinase corrects improperly attached chromosomes by recruiting molecules necessary for eliminating the bad attachments and by regulating the turnover of the kinetochore fiber.
Xin Zhang, Claire E. Walczak
openaire +3 more sources
The MatP/matS Site-Specific System Organizes the Terminus Region of the E. coli Chromosome into a Macrodomain [PDF]
The organization of the Escherichia coli chromosome into insulated macrodomains influences the segregation of sister chromatids and the mobility of chromosomal DNA.
Adachi+39 more
core +3 more sources
A simple biophysical model emulates budding yeast chromosome condensation
Mitotic chromosomes were one of the first cell biological structures to be described, yet their molecular architecture remains poorly understood. We have devised a simple biophysical model of a 300 kb-long nucleosome chain, the size of a budding yeast ...
Tammy MK Cheng+8 more
doaj +1 more source
During cell division, chromosome congression to the spindle center, their orientation along the spindle long axis and alignment at the metaphase plate depend on interactions between spindle microtubules and kinetochores, and are pre-requisite for ...
Laras Pitayu-Nugroho+7 more
doaj +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
Segregation but Not Replication of the
Coordination between chromosome replication and segregation is essential for equal partitioning of genetic material between daughter cells. In bacteria, this is achieved through the proximity of the origin of replication, oriC, and the chromosome ...
Bijit K. Bhowmik+3 more
doaj +1 more source