Results 61 to 70 of about 1,768,096 (341)

Where and when to start: Regulating DNA replication origin activity in eukaryotic genomes

Nucleus, 2023
In eukaryotic genomes, hundreds to thousands of potential start sites of DNA replication named origins are dispersed across each of the linear chromosomes.
Clare S.K. Lee, Matthias Weiβ, Stephan Hamperl   +2 more
doaj   +1 more source

Securin Is Not Required for Chromosomal Stability in Human Cells [PDF]

, 2005
Abnormalities of chromosome number are frequently observed in cancers. The mechanisms regulating chromosome segregation in human cells are therefore of great interest.
Azofeifa, Bunz, Cahill, Ciosk, Cohen-Fix, Funabiki, Giménez-Abián, Gorr, Gruber, Haering, Hauf, Hauf, Huang, Jallepalli, Jürgen Cox, Katrin Pfleghaar, Losada, McGuinness, Mei, Michael R Speicher, Michor, Nasmyth, Olaf Stemmann, R. Scott Hawley, Ramos-Morales, Saez, Simone Heubes, Speicher, Stemmann, Stemmann, Uhlmann, Waizenegger, Zou   +32 more
core   +4 more sources

Are There Knots in Chromosomes?

Polymers, 2017
Recent developments have for the first time allowed the determination of three-dimensional structures of individual chromosomes and genomes in nuclei of single haploid mouse embryonic stem (ES) cells based on Hi–C chromosome conformation contact data. Although these first structures have a relatively low resolution, they provide the first experimental ...
Tim J. Stevens, Jonathan Tammo Siebert, Liam P Atkinson, Ernest D. Laue, Alexey N Kivel, Peter Virnau   +5 more
openaire   +3 more sources

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

FEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan, Victoria Scarpelli, Marten Exterkate   +2 more
wiley   +1 more source

Functional interplay between condensin I and topoisomerase IIα in single-molecule DNA compaction

Nature Communications
Condensin I and topoisomerase IIα (topo IIα) are chromosomal ATPases essential for mitotic chromosome assembly. Mechanistically how the two ATPases cooperate to assemble mitotic chromosomes remains unknown.
Yuko Tsubota, Keishi Shintomi, Kazuhisa Kinoshita, Yuki Masahara-Negishi, Yuuki Aizawa, Masami Shima, Tatsuya Hirano, Tomoko Nishiyama   +7 more
doaj   +1 more source

ATR Activates the S-M Checkpoint during Unperturbed Growth to Ensure Sufficient Replication Prior to Mitotic Onset

Cell Reports, 2013
Cells must accurately replicate and segregate their DNA once per cell cycle in order to successfully transmit genetic information. During S phase in the presence of agents that cause replication stress, ATR-dependent checkpoints regulate origin firing ...
John Kenneth Eykelenboom, Emma Christina Harte, Lynn Canavan, Ana Pastor-Peidro, Irene Calvo-Asensio, Marta Llorens-Agost, Noel Francis Lowndes   +6 more
doaj   +1 more source

Simultaneous loading of PCR-based multiple fragments on mouse artificial chromosome vectors in DT40 cell for gene delivery

Scientific Reports, 2022
Homology-directed repair-mediated knock-in (HDR-KI) in combination with CRISPR-Cas9-mediated double strand break (DSB) leads to high frequency of site-specific HDR-KI. While this characteristic is advantageous for generating genetically modified cellular
Kyotaro Yamazaki, Kyosuke Matsuo, Akane Okada, Narumi Uno, Teruhiko Suzuki, Satoshi Abe, Shusei Hamamichi, Nanami Kishima, Shota Togai, Kazuma Tomizuka, Yasuhiro Kazuki   +10 more
doaj   +1 more source

Detection of chromosome aberrations in metaphase and interphase tumor cells by in situ hybridization using chromosome-specific library probes [PDF]

, 1988
Chromosome aberrations in two glioma cell lines were analyzed using biotinylated DNA library probes that specifically decorate chromosomes 1, 4, 7, 18 and 22 from pter to qter.
A Al-Saadi, AG Knudson, B Trask, CD Bloomfield, D Pinkel, D. C. Ward, F Mitelman, G Rappold, GM Brodeur, GT Merlino, H Harris, H Yamazaki, HE McDermid, J Burns, J. Borden, JA Rey, JE Landegent, JR Shapiro, JS Waye, L Larizza, L Manuelidis, L Manuelidis, L Manuelidis, L. Manuelidis, LC Showe, M Schardin, MF Hansen, NB Atkin, P Lichter, P. Lichter, SH Bigner, SH Bigner, SH Bigner, T Boveri, T Cremer, T Cremer, T. Cremer, TA Libermann, W Henn   +38 more
core   +1 more source

From lactation to malignancy: A comparison between healthy and cancerous breast gland at single‐cell resolution reveals new issues for tumorigenesis

FEBS Letters, EarlyView.
Single‐cell RNA sequencing reveals an opposite role of SLPI in basal tumors based on metastatic spread, along with shared activation of specific regulons in cancer cells and mature luminal lactocytes, as well as downregulation of MALAT1 and NEAT1 in the latter.
Pietro Ancona, Carlo M. Bergamini, Carlo Ferrari, Stefano Volinia, Nicoletta Bianchi   +4 more
wiley   +1 more source

Joint control of meiotic crossover patterning by the synaptonemal complex and HEI10 dosage

Nature Communications, 2022
During meiosis, the number and distribution of crossovers (COs) are tightly controlled, but the mechanistic basis of this control is unclear. Here, by combining experimental data and mathematical modeling, the study advocates a CO patterning model via ...
Stéphanie Durand, Qichao Lian, Juli Jing, Marcel Ernst, Mathilde Grelon, David Zwicker, Raphael Mercier   +6 more
doaj   +1 more source