Results 111 to 120 of about 170,053 (305)

The RepID–CRL4 ubiquitin ligase complex regulates metaphase to anaphase transition via BUB3 degradation

Nature Communications, 2020
The spindle assembly checkpoint (SAC) safeguards chromosome segregation by regulating the anaphase promoting complex/cyclosome (APC/C), allowing chromosomes to correctly attach to mitotic spindles. Here the authors reveal a role for Cullin–RING ubiquitin
Sang-Min Jang, Jenny F. Nathans, Haiqing Fu, Christophe E. Redon, Lisa M. Jenkins, Bhushan L. Thakur, Lőrinc S. Pongor, Adrian M. Baris, Jacob M. Gross, Maura J. OʹNeill, Fred E. Indig, Steven D. Cappell, Mirit I. Aladjem   +12 more
doaj   +1 more source

The meiosis-specific Cdc20 family-member Ama1 promotes binding of the Ssp2 activator to the Smk1 MAP kinase. [PDF]

, 2018
Smk1 is a meiosis-specific MAP kinase (MAPK) in budding yeast that is required for spore formation. It is localized to prospore membranes (PSMs), the structures that engulf haploid cells during meiosis II (MII).
Diamond, Aviva, Neiman, Aaron M., Omerza, Gregory, Philips, Timothy, Tio, Chong Wai, Winter, Edward   +5 more
core   +3 more sources

Cell cycle–regulated membrane binding of NuMA contributes to efficient anaphase chromosome separation

Molecular Biology of the Cell, 2014
The mitotic apparatus protein NuMA has an intrinsic membrane-targeting mechanism that is regulated by CDK1-mediated phosphorylation, underlies anaphase-specific cortical accumulation of dynein, and contributes to chromosome separation.
Zhen Zheng, Qingwen Wan, Gerry Meixiong, Q. Du   +3 more
semanticscholar   +1 more source

A Wee1 checkpoint inhibits anaphase onset [PDF]

Journal of Cell Biology, 2013
Cdk1 drives both mitotic entry and the metaphase-to-anaphase transition. Past work has shown that Wee1 inhibition of Cdk1 blocks mitotic entry. Here we show that the budding yeast Wee1 kinase, Swe1, also restrains the metaphase-to-anaphase transition by preventing Cdk1 phosphorylation and activation of the mitotic form of the anaphase-promoting complex/
Lianga, Noel, Williams, Elizabeth C., Kennedy, Erin K., Doré, Carole, Pilon, Sophie, Girard, Stéphanie L., Deneault, Jean-Sebastien, Rudner, Adam D.   +7 more
openaire   +2 more sources

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

Arabidopsis AUGMIN8 Contains Two Independent Microtubule Association Domains

Cytoskeleton, EarlyView.
ABSTRACT Plant cells create a plasma membrane‐associated network of microtubules that are nucleated by γ‐tubulin ring complexes primarily through microtubule‐dependent microtubule nucleation (MDMN). This dynamic array organizes into specific patterns in response to developmental and environmental cues to influence primary cell wall construction.
Naveen K. Chana, Timothy Cioffi, Sidney L. Shaw   +2 more
wiley   +1 more source

Ki67 Antigen Contributes to the Timely Accumulation of Protein Phosphatase 1γ on Anaphase Chromosomes*

Journal of Biological Chemistry, 2014
Background: Ki67 is a widely used cell proliferation marker whose cellular functions, however, remain elusive. Results: Ki67 interacts with protein phosphatase 1γ (PP1γ) and modulates its localization in anaphase. Conclusion: Ki67 is a novel regulator of
M. Takagi, Yuko Nishiyama, Atsuko Taguchi, N. Imamoto   +3 more
semanticscholar   +1 more source

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Arabidopsis ULTRAVIOLET-B-INSENSITIVE4 maintains cell division activity by temporal inhibition of the anaphase-promoting complex/cyclosome [PDF]

, 2011
The anaphase-promoting complex/cyclosome (APC/C) is a multisubunit ubiquitin ligase that regulates progression through the cell cycle by marking key cell division proteins for destruction.
Berckmans, Barbara, Boudolf, Véronique, De Jaeger, Geert, De Veylder, Lieven, De Wit, Kevin, Heyman, Jefri, Koncz, Csaba, Lessa Alvim Kamei, Claire, Van Den Daele, Hilde, Verkest, Aurine   +9 more
core   +2 more sources

Exploration of Therapeutic Targets Using CDK4 Inhibitors for Head and Neck Mucosal Melanoma

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective Mucosal melanoma (MM) is an extremely aggressive malignant tumor in the head and neck region associated with a poor prognosis. In the present study, we conducted cell proliferation assay and western blotting using cell lines derived from MM and the immunohistochemical analysis of pathological MM tissues to identify novel therapeutic ...
Takayoshi Hattori, Makiko Fujii, Tsutomu Ueda, Akira Ishikawa, Yuichi Mine, Bingwen Xu, Tomoya Suehiro, Minoru Hattori, Hiroaki Tahara, Yuki Sato, Nobuyuki Chikuie, Takayuki Taruya, Takao Hamamoto, Takashi Ishino, Sachio Takeno   +14 more
wiley   +1 more source