Initial activation of cyclin‐B1–cdc2 kinase requires phosphorylation of cyclin B1 [PDF]
At the G 2 /M transition of the cell cycle, the cdc25c phosphatase dephosphorylates inhibitory residues of cdc2, and cyclin‐B–cdc2 kinase (MPF) is activated. Phosphorylation of cyclin B1 induces its nuclear accumulation, and, since cdc25c is also believed to accumulate and activate shortly ...
Marion, Peter +5 more
openaire +2 more sources
Role of cyclin B1/Cdc2 up-regulation in the development of mitotic prometaphase arrest in human breast cancer cells treated with nocodazole. [PDF]
During a normal cell cycle, the transition from G₂ phase to mitotic phase is triggered by the activation of the cyclin B1-dependent Cdc2 kinase. Here we report our finding that treatment of MCF-7 human breast cancer cells with nocodazole, a prototypic ...
Hye Joung Choi +2 more
doaj +1 more source
Protein Expression of Cyclin B1, Transferrin Receptor, and Fibronectin Is Correlated with the Prognosis of Adrenal Cortical Carcinoma [PDF]
BackgroundAdrenal cortical carcinoma (ACC) is a rare cancer with a variable prognosis. Several prognostic factors of ACC have been previously reported, but a proteomic analysis has not yet been performed.
Sun Joon Moon +3 more
doaj +1 more source
ATG10 overexpression is related to the dismal prognosis and promotes the growth and migration of hepatocellular carcinoma cells via cyclin B1/CDK1 and CDK2. [PDF]
Li F +7 more
europepmc +2 more sources
The kinetics of G2 and M transitions regulated by B cyclins. [PDF]
B cyclins regulate G2-M transition. Because human somatic cells continue to cycle after reduction of cyclin B1 (cycB1) or cyclin B2 (cycB2) by RNA interference (RNAi), and because cycB2 knockout mice are viable, the existence of two genes should be an ...
Yehong Huang +2 more
doaj +1 more source
Cyclin F regulates the nuclear localization of cyclin B1 through a cyclin-cyclin interaction [PDF]
The key regulator of G(2)-M transition of the cell cycle is M-phase promoting factor (MPF), a complex composed of cdc2 and a B-type cyclin. Cyclin B1 nuclear localization involves phosphorylation within a region called the cytoplasmic retention signal, which also contains a nuclear export signal.
Kong, Monica +3 more
openaire +4 more sources
Cyclin-like genes are primarily considered as cell cycle regulators and have shown to be crucial for insect growth, development, reproduction, and fertility.
Muhammad Asad +5 more
doaj +1 more source
Nuclear translocation of Cyclin B1 marks the restriction point for terminal cell cycle exit in G2 phase [PDF]
Upon DNA damage, cell cycle progression is temporally blocked to avoid propagation of mutations. While transformed cells largely maintain the competence to recover from a cell cycle arrest, untransformed cells past the G1/S transition lose mitotic ...
Cascales, H.S. +4 more
core +4 more sources
An APC/C inhibitor stabilizes cyclin B1 by prematurely terminating ubiquitination [PDF]
The Anaphase-Promoting Complex/Cyclosome (APC) is a ubiquitin ligase required for exit from mitosis. We previously showed that Tosyl Arginine Methyl Ester (TAME) inhibits APC-dependent proteolysis by competing with the C-terminal IR-tail of the APC ...
King, Randall Wharton, Zeng, Xing
core +1 more source
Cyclin B1 overexpression in conventional oral squamous cell carcinoma and verrucous carcinoma-A correlation with clinicopathological features [PDF]
Background: Nuclear localization of cyclin B1 is an indicator for cells undergoing mitotic division, and the overexpression has shown promising results as a good prognostic predictor for patients of squamous cell carcinoma (SCC). Cyclin B1 overexpression
Balappanavar, Aswini Y. +5 more
core +1 more source

