Results 81 to 90 of about 191,348 (320)
Bacterial chromosome segregation.
Acta Biochimica Polonica, 2005 In most bacteria two vital processes of the cell cycle: DNA replication and chromosome segregation overlap temporally. The action of replication machinery in a fixed location in the cell leads to the duplication of oriC regions, their rapid separation to the opposite halves of the cell and the duplicated chromosomes gradually moving to the same ...
Aneta A, Bartosik +1 more
openaire +3 more sources
Chromosome segregation machinery and cancer [PDF]
Cancer Science, 2009 Loss or gain of chromosomes is associated with many cancer cells. This property, called chromosome instability, might arise from a lesion in the chromosome segregation machinery. Essential for chromosome segregation are the proper connection of microtubules to kinetochores, and the synchronous segregation of sister chromatids in anaphase.
Kozo, Tanaka, Toru, Hirota
openaire +2 more sources
Advanced Science, EarlyView.YAP undergoes phase separation to activate the AJUBA super‐enhancer, driving aberrant mitosis through spindle checkpoint dysregulation in breast cancer. This study uncovers a mechanistic link between YAP condensates, super‐enhancer activation, and aneuploidy formation.
Rui Zhang +8 more
wiley +1 more source
Nature Communications, 2022 Tension stabilizes properly attached microtubules to kinetochores during chromosome segregation, and lack of tension leads to release. Here the authors show that tension directly suppresses Aurora B kinase mediated destabilization of reconstituted ...
Anna K. de Regt +3 more
doaj +1 more source
Mitotic antipairing of homologous and sex chromosomes via spatial restriction of two haploid sets. [PDF]
, 2018 Pairing homologous chromosomes is required for recombination. However, in nonmeiotic stages it can lead to detrimental consequences, such as allelic misregulation and genome instability, and is rare in human somatic cells.
Hua, Lisa L, Mikawa, Takashi
core +1 more source
Metformin Restores Mitochondrial Function and Neurogenesis in POLG Patient‐Derived Brain Organoids
Advanced Science, EarlyView.Patient‐derived POLG‐mutant cortical organoids reveal neuronal subtype‐specific mitochondrial and synaptic defects, with dopaminergic neurons most affected. Metformin treatment restores neuronal identity, mitochondrial function, and excitability, increased mtDNA maintenance, and reprogrammed metabolism via TCA and redox pathways.
Zhuoyuan Zhang +6 more
wiley +1 more source
A saturated genetic linkage map of autotetraploid alfalfa (Medicago sativa L.) developed using genotyping-by-sequencing is highly syntenous with the Medicago truncatula genome. [PDF]
, 2014 A genetic linkage map is a valuable tool for quantitative trait locus mapping, map-based gene cloning, comparative mapping, and whole-genome assembly. Alfalfa, one of the most important forage crops in the world, is autotetraploid, allogamous, and highly
Acharya, Ananta +5 more
core +2 more sources
Resolving Chromosome Segregation in Bacteria
Microbial Physiology, 2006 Bacterial chromosomes are evenly distributed between daughter cells, however no equivalent eukaryotic mitotic apparatus has been identified yet. Nevertheless, an advance in our understanding of the dynamics of the bacterial chromosome has been accomplished in recent years by adopting fluorescence microscopy techniques to visualize living bacterial ...
Ronen, Hazan +3 more
openaire +2 more sources
Advanced Science, EarlyView.CCDC41 is essential for meiotic maturation in mouse oocytes through regulating Rab7‐positive endosomes fusion with lysosomes and Rab11a‐positive vesicle fusion with the plasma membrane. Abstract Coiled‐coil domain‐containing protein 41 (CCDC41), a core component of centriolar distal appendages involved in centriole assembly and ciliary vesicle docking,
Ying Tian +12 more
wiley +1 more source
Cell Reports, 2013 Homologous recombination leads to the formation of DNA joint molecules (JMs) that must be resolved to allow chromosome segregation, but how resolution is temporally coupled with chromosome segregation is unknown.
Joao Matos +2 more
doaj +1 more source