Results 11 to 20 of about 34,736 (254)

The Interplay of Cohesin and the Replisome at Processive and Stressed DNA Replication Forks

open access: yesCells, 2021
The cohesin complex facilitates faithful chromosome segregation by pairing the sister chromatids after DNA replication until mitosis. In addition, cohesin contributes to proficient and error-free DNA replication.
Janne J. M. van Schie, Job de Lange
doaj   +1 more source

Shugoshin1 may play important roles in separation of homologous chromosomes and sister chromatids during mouse oocyte meiosis. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: Homologous chromosomes separate in meiosis I and sister chromatids separate in meiosis II, generating haploid gametes. To address the question why sister chromatids do not separate in meiosis I, we explored the roles of Shogoshin1 (Sgo1) in ...
Shen Yin   +9 more
doaj   +1 more source

Single-sister labeling in the C. elegans germline using the nucleotide analog EdU

open access: yesSTAR Protocols, 2022
Summary: Reciprocal exchanges between genetically identical sister chromatids (sister chromatid exchanges or SCEs) have been challenging to study. Here, we describe a protocol that utilizes a pulse/chase of the thymidine analog 5-ethyl-3′-deoxyuridine ...
David E. Almanzar   +2 more
doaj   +1 more source

Investigating the Interplay between Sister Chromatid Cohesion and Homolog Pairing in Drosophila Nuclei. [PDF]

open access: yesPLoS Genetics, 2016
Following DNA replication, sister chromatids must stay connected for the remainder of the cell cycle in order to ensure accurate segregation in the subsequent cell division.
T Niroshini Senaratne   +3 more
doaj   +1 more source

Depletion or cleavage of cohesin during anaphase differentially affects chromatin structure and segregation

open access: yeseLife, 2022
Chromosome segregation requires both the separation of sister chromatids and the sustained condensation of chromatids during anaphase. In yeast cells, cohesin is not only required for sister chromatid cohesion but also plays a major role determining the ...
Jonay Garcia-Luis   +4 more
doaj   +1 more source

A multi-step pathway for the establishment of sister chromatid cohesion. [PDF]

open access: yesPLoS Genetics, 2007
The cohesion of sister chromatids is mediated by cohesin, a protein complex containing members of the structural maintenance of chromosome (Smc) family. How cohesins tether sister chromatids is not yet understood.
Mark Milutinovich   +4 more
doaj   +1 more source

PIASgamma is required for faithful chromosome segregation in human cells. [PDF]

open access: yesPLoS ONE, 2006
BACKGROUND:The precision of the metaphase-anaphase transition ensures stable genetic inheritance. The spindle checkpoint blocks anaphase onset until the last chromosome biorients at metaphase plate, then the bonds between sister chromatids are removed ...
Laura A Díaz-Martínez   +6 more
doaj   +1 more source

Behavior of Centromeres during Restitution of the First Meiotic Division in a Wheat–Rye Hybrid

open access: yesPlants, 2022
In first division restitution (FDR)-type meiosis, univalents congregate on the metaphase I plate and separate sister chromatids in an orderly fashion, producing dyads with somatic chromosome numbers. The second meiotic division is abandoned.
Adam J. Lukaszewski
doaj   +1 more source

EdU-Based Step-by-Step Method for the Detection of Sister Chromatid Exchanges for Application in Plant Genotoxicity Assessment

open access: yesFrontiers in Plant Science, 2020
This study is an example of using 5-ethynyl-2′-deoxyuridine (EdU) for detecting sister chromatid exchanges (SCEs) at chromosomal level. Here we report a detailed protocol for differential labeling sister chromatids in barley (Hordeum vulgare, 2n = 14 ...
Jolanta Kwasniewska, Adrianna Bara
doaj   +1 more source

Astrin is required for the maintenance of sister chromatid cohesion and centrosome integrity [PDF]

open access: yes, 2007
Faithful chromosome segregation in mitosis requires the formation of a bipolar mitotic spindle with stably attached chromosomes. Once all of the chromosomes are aligned, the connection between the sister chromatids is severed by the cysteine protease ...
Gruneberg, Ulrike   +3 more
core   +3 more sources

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