Results 31 to 40 of about 2,773,799 (223)
The crystal structure of cyclin A [PDF]
Structure, 1995 Eukaryotic cell cycle progression is regulated by cyclin dependent protein kinases (CDKs) whose activity is regulated by association with cyclins and by reversible phosphorylation. Cyclins also determine the subcellular location and substrate specificity of CDKs.
N.R. Brown +8 more
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Cyclin E Expression and Proliferation in Breast Cancer
Analytical Cellular Pathology, 1998 Cyclin E is a part of the cell cycle machinery and aberrantly expressed in several malignancies including breast cancer. Since cyclin E is cell cycle specifically expressed, we wanted to examine the relation between proliferation and expression of cyclin
Niels H. Nielsen +3 more
doaj +1 more source
Molecular and Cellular Biology, 1994 Herpesvirus saimiri contains an open reading frame called eclf2 with homology to the cellular type D cyclins. We now show that the eclf2 gene product is a novel virus-encoded cyclin (v-cyclin). The protein encoded by the v-cyclin gene of this oncogenic herpesvirus was found to have an apparent molecular size of 29 kDa in transformed cells.
Jae U. Jung +2 more
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Dynamic anticipation by Cdk2/Cyclin A-bound p27 mediates signal integration in cell cycle regulation [PDF]
, 2018 p27$^{Kip1}$ (p27) is an intrinsically disordered protein (IDP) that folds upon binding to cyclin-dependent kinase (Cdk)$/$cyclin complexes (e.g., Cdk2$/$cyclin A), inhibiting their catalytic activity and causing cell cycle arrest. However, cell division progresses when stably Cdk2$/$cyclin A-bound p27 is phosphorylated on one or two structurally ...
arxiv +1 more source
Effect of cyclins and Cdks on the cyclin B1 promoter activation [PDF]
IUBMB Life, 1997 AbstractTo study the effect of several cyclins on cyclin B1 promoter activation, we co‐transfected cyclin A, cyclin E and cyclin D1 expressing plasmids with a cyclin B1 promoter construction driving a luciferase repotnter gene into NIH 3T3 cells. All three cyclins produced activation of the reporter gene, however, co‐transfection of cyclin A with a ...
P. Jansen-Duerr +3 more
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Epstein-Barr virus nuclear antigen 3C facilitates G1-S transition by stabilizing and enhancing the function of cyclin D1. [PDF]
PLoS Pathogens, 2011 EBNA3C, one of the Epstein-Barr virus (EBV)-encoded latent antigens, is essential for primary B-cell transformation. Cyclin D1, a key regulator of G1 to S phase progression, is tightly associated and aberrantly expressed in numerous human cancers ...
Abhik Saha +7 more
doaj +1 more source
A yeast cell cycle pulse generator model shows consistency with multiple oscillatory and checkpoint mutant datasets [PDF]
arXiv, 2023 The regulatory mechanisms driving progression of the yeast cell cycle appears to be comprised of an interacting network of transcription factors (TFs), cyclin-dependent kinases (CDK) and ubiquitin ligases. From a systems perspective the controlling regulatory network must produce robust periodic behavior during proliferative phases, but have the ...
arxiv
Using a hydrogen-bond index to predict the gene-silencing efficiency of siRNA based on the local structure of mRNA [PDF]
Biochem Biophys Res Comms, vol.320 (2) 622 (2004), 2017 The gene silencing effect of short interfering RNA (siRNA) is known to vary strongly with the targeted position of the mRNA. A number of hypotheses have been suggested to explain this phenomenon. We would like to test if this positional effect is mainly due to the secondary structure of the mRNA at the target site.
arxiv +1 more source
, 2006 D type cyclins belong to a family of related proteins that bind to and activate several protein kinases named cyclin-dependent kinases (CDKs), which are involved in regulation of the cell division cycle.
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Investigation of the impact of PTMs on the protein backbone conformation [PDF]
Amino Acids, Springer Verlag, 2019, 51 (7), pp.1065-1079, 2019 Post-Translational Modifications (PTMs) are known to play a critical role in the regulation of the protein functions. Their impact on protein structures, and their link to disorder regions have already been spotted on the past decade. Nonetheless, the high diversity of PTMs types, and the multiple schemes of protein modifications (multiple PTMs, of ...
arxiv +1 more source