Regulation of Op18 during Spindle Assembly in Xenopus Egg Extracts [PDF]
, 2001 Oncoprotein 18 (Op18) is a microtubule-destabilizing protein that is negatively regulated by phosphorylation. To evaluate the role of the three Op18 phosphorylation sites in Xenopus (Ser 16, 25, and 39), we added wild-type Op18, a nonphosphorylatable ...
Andersen +67 more
core +4 more sources
PR55α, a Regulatory Subunit of PP2A, Specifically Regulates PP2A-mediated β-Catenin Dephosphorylation [PDF]
Journal of Biological Chemistry, 2009 A central question in Wnt signaling is the regulation of beta-catenin phosphorylation and degradation. Multiple kinases, including CKI alpha and GSK3, are involved in beta-catenin phosphorylation. Protein phosphatases such as PP2A and PP1 have been implicated in the regulation of beta-catenin. However, which phosphatase dephosphorylates beta-catenin in
Wen, Zhang +6 more
openaire +2 more sources
PP2A-B55 Holoenzyme Regulation and Cancer [PDF]
Biomolecules, 2020 Protein phosphorylation is a post-translational modification essential for the control of the activity of most enzymes in the cell. This protein modification results from a fine-tuned balance between kinases and phosphatases. PP2A is one of the major serine/threonine phosphatases that is involved in the control of a myriad of different signaling ...
Goguet-Rubio, Perrine +8 more
openaire +4 more sources
Protein & Cell, 2016 Protein phosphatase 2A (PP2A) accounts for the majority of total Ser/Thr phosphatase activities in most cell types and regulates many biological processes.
Jiao Wang +10 more
doaj +1 more source
A signaling visualization toolkit to support rational design of combination therapies and biomarker discovery: SiViT [PDF]
, 2016 Targeted cancer therapy aims to disrupt aberrant cellular signalling pathways. Biomarkers are surrogates of pathway state, but there is limited success in translating candidate biomarkers to clinical practice due to the intrinsic complexity of pathway ...
Boiko, Andrei +6 more
core +3 more sources
Oma1 Links Mitochondrial Protein Quality Control and TOR Signaling To Modulate Physiological Plasticity and Cellular Stress Responses [PDF]
, 2016 ACKNOWLEDGMENTS We thank Dennis Winge (University of Utah) and the members of the Khalimonchuk laboratory for critical comments. We also thank Christoph Schuller (University of Natural Resources, Austria) and Paul Herman (Ohio State University) for ...
Barrientos, Antoni +10 more
core +2 more sources
Investigation of PP2A and Its Endogenous Inhibitors in Neuroblastoma Cell Survival and Tumor Growth
Translational Oncology, 2019 High-risk neuroblastoma continues to carry a poor prognosis. Nearly 50% of these tumors relapse following extensive treatment regimens. Protein phosphatase 2A (PP2A), a tumor suppressor, has been shown to be downregulated in many human cancers via ...
Adele P. Williams +7 more
doaj +1 more source
The chronic myeloid leukemia stem cell: stemming the tide of persistence [PDF]
, 2017 Chronic myeloid leukaemia (CML) is caused by the acquisition of the tyrosine kinase BCR-ABL1 in a haemopoietic stem cell (HSC), transforming it into a leukaemic stem cell (LSC) that self-renews, proliferates and differentiates to give rise to a ...
Holyoake, Tessa L., Vetrie, David
core +1 more source
The Molecular Mechanism of Alpha-Synuclein Dependent Regulation of Protein Phosphatase 2A Activity
Cellular Physiology and Biochemistry, 2018 Background/Aims: Alpha-synuclein (α-Syn) is a neuronal protein that is highly implicated in Parkinson’s disease (PD), and protein phosphatase 2A (PP2A) is an important serine/threonine phosphatase that is associated with neurodegenerative diseases, such ...
Jing Qu +8 more
doaj +1 more source
How to halve ploidy : lessons from budding yeast meiosis [PDF]
, 2012 Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells.
Arumugam, Prakash +2 more
core +1 more source