Protein Phosphatase-1 Inhibitor-2 Is a Novel Memory Suppressor [PDF]
Reversible phosphorylation, a fundamental regulatory mechanism required for many biological processes including memory formation, is coordinated by the opposing actions of protein kinases and phosphatases. Type I protein phosphatase (PP1), in particular, has been shown to constrain learning and memory formation.
Hongtian, Yang +7 more
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Structural Basis for Regulation of Protein Phosphatase 1 by Inhibitor-2 [PDF]
The functional specificity of type 1 protein phosphatases (PP1) depends on the associated regulatory/targeting and inhibitory subunits. To gain insights into the mechanism of PP1 regulation by inhibitor-2, an ancient and intrinsically disordered regulator, we solved the crystal structure of the complex to 2.5A resolution.
Thomas D, Hurley +7 more
openaire +2 more sources
Several rat liver HMG-CoA-reductase (HMG-CoA-Rd) phosphatase activities have been shown to be associated with the endoplasmic reticulum. These activities were not due to glycogen contamination, as judged not only from different patterns of solubilization
G Asins, D Serra, FG Hegardt
doaj +1 more source
Inhibition of the tyrosine phosphatase SHP-2 suppresses angiogenesis in vitro and in vivo [PDF]
Endothelial cell survival is indispensable to maintain endothelial integrity and initiate new vessel formation. We investigated the role of SHP-2 in endothelial cell survival and angiogenesis in vitro as well as in vivo.
Groesser, Leopold +8 more
core +1 more source
A unique kelch domain phosphatase in plasmodium regulates ookinete morphology, motility and invasion [PDF]
Signalling through post-translational modification (PTM) of proteins is a process central to cell homeostasis, development and responses to external stimuli.
Heli J. Vaikkinen (137832) +15 more
core +1 more source
Osteoarthritis (OA) is a chronic articular disease characterized by cartilage degradation, subchondral bone remodeling and osteophyte formation. Src homology 2 domain-containing protein tyrosine phosphatase (SHP2) has not been fully investigated in the ...
Tenghui Tao +10 more
doaj +1 more source
Rhizobiales-like Phosphatase 2 from Arabidopsis thaliana Is a Novel Phospho-tyrosine-specific Phospho-protein Phosphatase (PPP) Family Protein Phosphatase [PDF]
Cellular signaling through protein tyrosine phosphorylation is well established in mammalian cells. Although lacking the classic tyrosine kinases present in humans, plants have a tyrosine phospho-proteome that rivals human cells. Here we report a novel plant tyrosine phosphatase from Arabidopsis thaliana (AtRLPH2) that, surprisingly, has the sequence ...
Uhrig, R +4 more
openaire +3 more sources
Dexamethasone-Induced Expression of Endothelial Mitogen-Activated Protein Kinase Phosphatase-1 Involves Activation of the Transcription Factors Activator Protein-1 and 3',5'-Cyclic Adenosine 5'-Monophosphate Response Element-Binding Protein and the Generation of Reactive Oxygen Species [PDF]
We have recently identified the MAPK phosphatase (MKP)-1 as a novel mediator of the antiinflammatory properties of glucocorticoids (dexamethasone) in the human endothelium. However, nothing is as yet known about the signaling pathways responsible for the
Vollmar, Angelika M. +2 more
core +1 more source
Manzamenones Inhibit T-Cell Protein Tyrosine Phosphatase
: Manzamenones A~C (1~3) and E~F (5~6), unique oxylipin metabolites isolated from a marine sponge Plakortis sp., have been found to exhibit inhibitory activity against Tcell protein tyrosine phosphatase (TCPTP). The inhibitory activity of 2 and 5 against
Jun'ichi Kobayashi +7 more
doaj +1 more source
Protein phosphatase 1α is a Ras-activated Bad phosphatase that regulates interleukin-2 deprivation-induced apoptosis [PDF]
Growth factor deprivation is a physiological mechanism to regulate cell death. We utilize an interleukin-2 (IL-2)-dependent murine T-cell line to identify proteins that interact with Bad upon IL-2 stimulation or deprivation. Using the yeast two-hybrid system, glutathione S-transferase (GST) fusion proteins and co-immunoprecipitation techniques, we ...
Ayllon, V. +4 more
openaire +4 more sources

