Results 71 to 80 of about 191,348 (320)

Unique Function of the Bacterial Chromosome Segregation Machinery in Apically Growing Streptomyces - Targeting the Chromosome to New Hyphal Tubes and its Anchorage at the Tips.

PLoS Genetics, 2016
The coordination of chromosome segregation with cell growth is fundamental to the proliferation of any organism. In most unicellular bacteria, chromosome segregation is strictly coordinated with cell division and involves ParA that moves the ParB ...
Agnieszka Kois-Ostrowska, Agnieszka Strzałka, Natalia Lipietta, Emma Tilley, Jolanta Zakrzewska-Czerwińska, Paul Herron, Dagmara Jakimowicz   +6 more
doaj   +1 more source

Methylated histones on mitotic chromosomes promote topoisomerase IIα function for high fidelity chromosome segregation

iScience, 2023
Summary: DNA Topoisomerase IIα (TopoIIα) decatenates sister chromatids, allowing their segregation in mitosis. Without the TopoIIα Strand Passage Reaction (SPR), chromosome bridges and ultra-fine DNA bridges (UFBs) arise in anaphase.
Sanjana Sundararajan, Hyewon Park, Shinji Kawano, Marnie Johansson, Bunu Lama, Tomoko Saito-Fujita, Noriko Saitoh, Alexei Arnaoutov, Mary Dasso, Zhengqiang Wang, Daniel Keifenheim, Duncan J. Clarke, Yoshiaki Azuma   +12 more
doaj   +1 more source

SWI/SNF-like chromatin remodeling factor Fun30 supports point centromere function in S. cerevisiae [PDF]

, 2011
Budding yeast centromeres are sequence-defined point centromeres and are, unlike in many other organisms, not embedded in heterochromatin. Here we show that Fun30, a poorly understood SWI/SNF-like chromatin remodeling factor conserved in humans ...
Anna T. Vetter, Beth A. Sullivan, Delphine Theodorou, Edoardo Petrini, Felix Krueger, J. Ross Miller, Konrad Paszkiewicz, Margaret R. Crawford, Mickaël Durand-Dubief, Nicholas A. Kent, Patrick Varga-Weisz, Rachael R. Harris, Rosa Maria Correra, William Ryan Will   +13 more
core   +4 more sources

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

A time out for CENP-A

Molecular & Cellular Oncology, 2017
Proper chromosome segregation relies on a functional centromere–kinetochore interface. We showed that chromatin containing CENtromere Protein A (CENP-A) is essential for centromere assembly, but dispensable for chromosome segregation in the presence of ...
S. Hoffmann, D. Fachinetti
doaj   +1 more source

A Computational Approach to Estimating Nondisjunction Frequency in Saccharomyces cerevisiae. [PDF]

, 2016
Errors segregating homologous chromosomes during meiosis result in aneuploid gametes and are the largest contributing factor to birth defects and spontaneous abortions in humans.
Burgess, Sean M, Chu, Daniel B
core   +3 more sources

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

Advanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen, Shuntaro Yamada, Daniel J. Hutchinson, Mohammed A. Yassin, Samih Mohamed‐Ahmed, Cecilie Gjerde, Michael Malkoch, Kamal Mustafa   +7 more
wiley   +1 more source

Fission yeast neddylation ligase Dcn1 facilitates cohesin cleavage and chromosome segregation at anaphase

Biology Open, 2017
Post-translational protein modification such as phosphorylation and ubiquitination are critical during mitosis to ensure proper timing and progression of chromosome segregation.
Lan Lin, Li Chen, Phong T. Tran
doaj   +1 more source

Evolutionary dynamics of adult stem cells: Comparison of random and immortal strand segregation mechanisms

, 2004
This paper develops a point-mutation model describing the evolutionary dynamics of a population of adult stem cells. Such a model may prove useful for quantitative studies of tissue aging and the emergence of cancer.
A. T. Natarajan, C. S. Potten, D. Voet, J. R. Merok, T. Helleday   +4 more
core   +1 more source

CENH3-GFP: a visual marker for gametophytic and somatic ploidy determination in Arabidopsis thaliana [PDF]

, 2016
Background: The in vivo determination of the cell-specific chromosome number provides a valuable tool in several aspects of plant research. However, current techniques to determine the endosystemic ploidy level do not allow non-destructive, cell-specific
Angenon, Geert, De Storme, Nico, Geelen, Danny, Keçeli, Burcu Nur, Zamariola, Linda   +4 more
core   +5 more sources