Results 41 to 50 of about 74,508 (147)

Homolog pairing during meiosis : dyneins on the move [PDF]

open access: yes, 2010
Meiosis is a specialized form of cell division that generates haploid gametes from diploid cells. This is achieved by having 1 round of DNA replication followed by 2 rounds of nuclear division.
Arumugam, Prakash
core   +1 more source

Chromosome-associated RNA–protein complexes promote pairing of homologous chromosomes during meiosis in Schizosaccharomyces pombe

open access: yesNature Communications, 2019
During meiosis, pairing of homologous chromosomes is critical for sexual reproduction. Here the authors reveal in S. pombe the role of lncRNA–protein complexes during the pairing of homologues chromosomes that assemble at specific chromosomal loci to ...
Da-Qiao Ding   +8 more
doaj   +1 more source

Exploiting Homology Information in Nontemplate Based Prediction of Protein Structures [PDF]

open access: yes, 2015
In this paper we describe a novel strategy for exploring the conformational space of proteins and show that this leads to better models for proteins the structure of which is not amenable to template based methods. Our strategy is based on the assumption
Alfredo Iacoangeli   +3 more
core   +2 more sources

The TERB1 MYB domain suppresses telomere erosion in meiotic prophase I

open access: yesCell Reports, 2022
Summary: The meiosis-specific telomere-binding protein TERB1 anchors telomeres to the nuclear envelope and drives chromosome movements for the pairing of homologous chromosomes.
Kexin Zhang   +6 more
doaj   +1 more source

Mitotic antipairing of homologous and sex chromosomes via spatial restriction of two haploid sets. [PDF]

open access: yes, 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

Evidence that MEK1 positively promotes interhomologue double-strand break repair [PDF]

open access: yes, 2010
During meiosis there is an imperative to create sufficient crossovers for homologue segregation. This can be achieved during repair of programmed DNA double-strand breaks (DSBs), which are biased towards using a homologue rather than sister chromatid as ...
Bishop-Bailey, A   +5 more
core   +1 more source

Bivalent individualization during chromosome territory formation in Drosophila spermatocytes by controlled condensin II protein activity and additional force generators.

open access: yesPLoS Genetics, 2021
Reduction of genome ploidy from diploid to haploid necessitates stable pairing of homologous chromosomes into bivalents before the start of the first meiotic division.
Luisa Vernizzi, Christian F Lehner
doaj   +1 more source

Quantitative dynamics of telomere bouquet formation.

open access: yesPLoS Computational Biology, 2012
The mechanism by which homologous chromosomes pair during meiosis, as a prelude to recombination, has long been mysterious. At meiosis, the telomeres in many organisms attach to the nuclear envelope and move together to form the telomere bouquet, perhaps
David M Richards   +5 more
doaj   +1 more source

Germline progenitors escape the widespread phenomenon of homolog pairing during Drosophila development. [PDF]

open access: yesPLoS Genetics, 2013
Homolog pairing, which plays a critical role in meiosis, poses a potential risk if it occurs in inappropriate tissues or between nonallelic sites, as it can lead to changes in gene expression, chromosome entanglements, and loss-of-heterozygosity due to ...
Eric F Joyce   +3 more
doaj   +1 more source

FIGNL1 Inhibits Non-homologous Chromosome Association and Crossover Formation

open access: yesFrontiers in Plant Science, 2022
Meiotic crossovers (COs) not only generate genetic diversity but also ensure the accuracy of homologous chromosome segregation. Here, we identified FIGNL1 as a new inhibitor for extra crossover formation in rice.
Shuying Yang   +13 more
doaj   +1 more source

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