Results 71 to 80 of about 34,736 (254)

Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane‐Fly Spermatocytes

Cytoskeleton, EarlyView.
ABSTRACT Elastic tethers connect telomeres of separating chromosomes in anaphase of animal cells. Immunofluorescence staining of titin in crane‐fly spermatocytes, using 4 different antibodies, shows that the giant elastic protein titin seems to be a component of mitotic tethers: titin “strands” extend between separating chromosomes, connecting their ...
Demetra Economopoulos, Maral Janan, Martina Krüger, Aavo‐Valdur Mikelsaar, Arthur Forer, Rose Sheykhani   +5 more
wiley   +1 more source

Protein turnover downstream of the Nipbl/CRL4 axis contributes to abnormal development in zebrafish embryos

Developmental Dynamics, EarlyView.
Abstract Background Mutations in cohesins cause cohesinopathies such as Cornelia de Lange Syndrome (CdLS) and Roberts Syndrome (RBS). Prior findings demonstrate that Esco2 (a cohesin activator) and Smc3 (a core cohesin subunit) regulate the CRL4 E3 ubiquitin ligase. SMC3 mutations, however, account for a small percentage of CdLS.
Annie C. Sanchez, Niusha Banoukh, Fiona Mensching, Robert V. Skibbens, M. Kathryn Iovine   +4 more
wiley   +1 more source

Cohesin-mediated DNA loop extrusion resolves sister chromatids in G2 phase. [PDF]

EMBO J, 2023
Batty P, Langer CC, Takács Z, Tang W, Blaukopf C, Peters JM, Gerlich DW.   +6 more
europepmc   +2 more sources

Spo13 prevents premature cohesin cleavage during meiosis [version 1; peer review: 2 approved, 1 approved with reservations]

Wellcome Open Research, 2019
Background: Meiosis produces gametes through two successive nuclear divisions, meiosis I and meiosis II. In contrast to mitosis and meiosis II, where sister chromatids are segregated, during meiosis I, homologous chromosomes are segregated. This requires
Stefan Galander, Rachael E. Barton, David A. Kelly, Adèle L. Marston   +3 more
doaj   +1 more source

PICH acts as a force-dependent nucleosome remodeler

Nature Communications, 2022
In anaphase, any unresolved DNA entanglements between the segregating sister chromatids can give rise to chromatin bridges. Here, the authors present an in vitro single-molecule assay that mimics chromatin under tension, to show that PICH is a tension ...
Dian Spakman, Tinka V. M. Clement, Andreas S. Biebricher, Graeme A. King, Manika I. Singh, Ian D. Hickson, Erwin J. G. Peterman, Gijs J. L. Wuite   +7 more
doaj   +1 more source

Positive regulation of meiotic DNA double-strand break formation by activation of the DNA damage checkpoint kinase Mec1(ATR) [PDF]

, 2013
During meiosis, formation and repair of programmed DNA double-strand breaks (DSBs) create genetic exchange between homologous chromosomes-a process that is critical for reductional meiotic chromosome segregation and the production of genetically diverse ...
Allison, Rachal M, Garcia, Valerie, Goldman, Alastair S H, Gray, Stephen, Neale, Matthew J   +4 more
core   +1 more source

Ashwagandha: Is It Safe? Part 2: A Preclinical Evidence Review

Phytotherapy Research, EarlyView.
ABSTRACT The preclinical evidence for the safety of ashwagandha (Withania somnifera (L.) Dunal, AS) is reviewed, and its preparations (extracts) and constituents, from the general toxicity in animal models to in vitro and cell culture studies, which may elucidate mechanisms of action and explain clinical case reports.
Elizabeth M. Williamson, Thomas Brendler
wiley   +1 more source

Application of neural network-based image analysis to detect sister chromatid cohesion defects

Scientific Reports, 2023
Sister chromatid cohesion (SCC) is mediated by the cohesin complex and its regulatory proteins. To evaluate the involvement of a protein in cohesin regulation, preparations of metaphase chromosome spreads and classifications of chromosome shapes after ...
Daiki Ikemoto, Tomoya Taniguchi, Kouji Hirota, Kiyoshi Nishikawa, Kan Okubo, Takuya Abe   +5 more
doaj   +1 more source

Double-strand break repair and homologous recombination in Schizosaccharomyces pombe [PDF]

, 2006
In recent years our understanding of double strand break repair and homologous recombination in Schizosaccharomyces pombe has increased significantly, and the identification of novel pathways and genes with homologues in higher eukaryotes has increased ...
Ahmad, Ahmad, Ahn, Ahnesorg, Akamatsu, Assenmacher, Baumann, Boddy, Boddy, Bonatto, Bransteitter, Buck, Callebaut, Caspari, Catlett, Cervantes, Chahwan, Cheok, Connelly, Cooper, Doe, Doe, Doe, Doe, Dudasova, Farah, Farah, Ferreira, Ferreira, Fukushima, Gaillard, Goedecke, Goodwin, Grishchuk, Haber, Hartsuiker, Hefferin, Jang, Jung, Khasanov, Khasanov, Kibe, Kim, Kim, Krogh, Lambert, Laursen, Macris, Maftahi, Maftahi, Manolis, Marchetti, Martin, McGlynn, Moore, Morishita, Muris, Muris, Muris, Murray, Nakada, Nakamura, Oakley, Ono, Osman, Osman, Osman, Ostermann, Paques, Parker, Prudden, Sauvageau, Schmidt, Segurado, Shinohara, Smith, Steiner, Stewart, Sung, Suto, Szankasi, Szostak, Tarsounas, Tavassoli, Thacker, Tomita, Tomita, Tsutsui, Tsutsui, Ueno, van den Bosch, van den Bosch, Virgin, Virgin, Wang, Weterings, Whitby, Whitby, Wilson, Win, Win, You, Young   +102 more
core   +2 more sources

Targeting Genome Maintenance Defects of Cancers Using Chain‐Terminating Nucleoside Analogs

Cancer Science, EarlyView.
Nucleoside analogs interfere with DNA replication either by their chain‐terminating properties or by serving as DNA damage on the template. The genome maintenance pathways required to maintain cellular tolerance to each nucleoside analog vary depending on the drug.
Ryotaro Kawasumi, Rubaiat E. Tabassum, Kouji Hirota   +2 more
wiley   +1 more source