Results 111 to 120 of about 2,294,281 (319)

Helical repeat of DNA in the region of homologous pairing [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
The process of DNA strand exchange during general genetic recombination is initiated within protein-stabilized synaptic filaments containing homologous regions of interacting DNA molecules. The RecA protein in bacteria and its analogs in eukaryotic organisms start this process by forming helical filamentous complexes on single-stranded or partially ...
Kiianitsa K, Stasiak A
openaire   +3 more sources

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

open access: yesMolecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen   +9 more
wiley   +1 more source

Induced chromosome pairing

open access: yesCalifornia Agriculture, 1982
Not available – first paragraph follows: Success in hybridizing wild with cultivated species ultimately depends on the ability of the alien chromosomes to pair and recombine with the chromosomes of the crop species at meiosis.
J Irvine, P McGuire
doaj  

Management of E. coli sister chromatid cohesion in response to genotoxic stress

open access: yesNature Communications, 2017
Homologous recombination of DNA lesions in bacteria involves sister chromatid pairing. Here, the authors show that RecN promotes contacts between sister chromatids and facilitates repair.
Elise Vickridge   +4 more
doaj   +1 more source

Sequence analysis of wheat subtelomeres reveals a high polymorphism among homoeologous chromosomes

open access: yesThe Plant Genome, 2020
Bread wheat, Triticum aestivum L., is one of the most important crops in the world. Understanding its genome organization (allohexaploid; AABBDD; 2n = 6x = 42) is essential for geneticists and plant breeders. Particularly, the knowledge of how homologous
Miguel Aguilar, Pilar Prieto
doaj   +1 more source

Surgery formulae for finite type invariants of rational homology 3--spheres

open access: yes, 2007
We first present three graphic surgery formulae for the degree $n$ part $Z_n$ of the Kontsevich-Kuperberg-Thurston universal finite type invariant of rational homology spheres.
Akbulut   +18 more
core   +2 more sources

Recombination, Pairing, and Synapsis of Homologs during Meiosis [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2015
Recombination is a prominent feature of meiosis in which it plays an important role in increasing genetic diversity during inheritance. Additionally, in most organisms, recombination also plays mechanical roles in chromosomal processes, most notably to mediate pairing of homologous chromosomes during prophase and, ultimately, to ensure regular ...
Zickler, Denise, Kleckner, Nancy
openaire   +2 more sources

Differential regulation of ZFAS1 splice variants by endoplasmic reticulum stress in hepatocyte cell lines

open access: yesFEBS Open Bio, EarlyView.
ZFAS1 is a lncRNA promoting cell proliferation and migration, exhibiting high expression in various cancers. It is conserved, widely expressed, and produces multiple splice variants with unclear roles. We identified several splice variants in hepatocyte models, and found that inhibiting or suppressing regulators of the unfolded protein response (PERK ...
Sébastien Soubeyrand   +2 more
wiley   +1 more source

Centromeric SMC1 promotes centromere clustering and stabilizes meiotic homolog pairing.

open access: yesPLoS Genetics, 2019
During meiosis, each chromosome must selectively pair and synapse with its own unique homolog to enable crossover formation and subsequent segregation.
Talia Hatkevich   +5 more
doaj   +1 more source

Mechanics and dynamics of X-chromosome pairing at X inactivation. [PDF]

open access: yesPLoS Computational Biology, 2008
At the onset of X-chromosome inactivation, the vital process whereby female mammalian cells equalize X products with respect to males, the X chromosomes are colocalized along their Xic (X-inactivation center) regions.
Antonio Scialdone, Mario Nicodemi
doaj   +1 more source

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