Results 31 to 40 of about 887,918 (307)

Modulation of VEGF receptor 2 signaling by protein phosphatases [PDF]

Pharmacological Research, 2017
Phosphorylation of serines, threonines, and tyrosines is a central event in signal transduction cascades in eukaryotic cells. The phosphorylation state of any particular protein reflects a balance of activity between kinases and phosphatases. Kinase biology has been exhaustively studied and is reasonably well understood, however, much less is known ...
Federico, Corti, Michael, Simons
openaire   +2 more sources

Identification of a protein phosphatase-1/phospholamban complex that is regulated by cAMP-dependent phosphorylation.

PLoS ONE, 2013
In human and experimental heart failure, the activity of the type 1 phosphatase is significantly increased, associated with dephosphorylation of phospholamban, inhibition of the sarco(endo)plasmic reticulum Ca(2+) transport ATPase (SERCA2a) and depressed
Elizabeth Vafiadaki, Demetrios A Arvanitis, Despina Sanoudou, Evangelia G Kranias   +3 more
doaj   +1 more source

Targeting Oncogenic Src Homology 2 Domain-Containing Phosphatase 2 (SHP2) by Inhibiting Its Protein–Protein Interactions [PDF]

Journal of Medicinal Chemistry, 2020
AbstractWe developed a new class of inhibitors of protein-protein interactions of the SHP2 phosphatase, which is pivotal in multiple signaling pathways and a central target in the therapy of cancer and rare diseases. Currently available SHP2 inhibitors target the catalytic site or an allosteric pocket but lack specificity or are ineffective on disease ...
Sara Bobone, Luca Pannone, Barbara Biondi, Maja Solman, Elisabetta Flex, Viviana Canale, Paolo Calligari, Chiara De Faveri, Tommaso Gandini, Andrea Quercioli, Giuseppe Torini, Martina Venditti, Antonella Lauri, Giulia Fasano, Jelmer Hoeksma, Valerio Santucci, Giada Cattani, Alessio Bocedi, Giovanna Carpentieri, Valentina Tirelli, Massimo Sanchez, Cristina Peggion, Fernando Formaggio, Jeroen den Hertog, Simone Martinelli, Gianfranco Bocchinfuso, Marco Tartaglia, Lorenzo Stella   +27 more
openaire   +7 more sources

Purification and characterization of a protein inhibitor from rat liver that inhibits type 1 protein phosphatase when 3-hydroxy-3-methylglutaryl CoA reductase is the substrate.

Journal of Lipid Research, 1990
A protein inhibitor of HMG-CoA reductase phosphatase activity from rat liver was purified to homogeneity. The protein was purified 4,000-fold with an overall yield of 4%. The purified protein had a molecular mass of 31 kDa.
D Serra, G Asins, FG Hegardt
doaj   +1 more source

Activity of protein phosphatases against initiation factor-2 and elongation factor-2 [PDF]

Biochemical Journal, 1990
The protein phosphatases active against phosphorylase a, elongation factor-2 (EF-2) and the alpha-subunit of initiation factor-2 (eIF-2) [eIF-2(alpha P)] were studied in extracts of rabbit reticulocytes. Swiss-mouse 3T3 fibroblasts and rat hepatocytes, by use of the specific phosphatase inhibitors okadaic acid and inhibitor proteins-1 and -2.
N T, Redpath, C G, Proud
openaire   +2 more sources

Isolation and partial characterization of a protein with HMG-CoA reductase phosphatase activity associated with rat liver microsomal membranes.

Journal of Lipid Research, 1991
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

Characterization of VPS34-IN1, a selective inhibitor of Vps34, reveals that the phosphatidylinositol 3-phosphate-binding SGK3 protein kinase is a downstream target of class III phosphoinositide 3-kinase [PDF]

, 2014
The Vps34 (vacuolar protein sorting 34) class III PI3K (phosphoinositide 3-kinase) phosphorylates PtdIns (phosphatidylinositol) at endosomal membranes to generate PtdIns(3)P that regulates membrane trafficking processes via its ability to recruit a ...
Alessi, Dario R., Bago, Ruzica, Cross, Darren, Davies, Paul, Ganley, Ian G., Malik, Nazma, Munson, Michael J., Prescott, Alan R., Shpiro, Natalia, Sommer, Eeva, Ward, Richard   +10 more
core   +3 more sources

Protein phosphatase-1: dual activity regulation by Inhibitor-2

Biochemical Society Transactions, 2020
Inhibitor-2 (I2) ranks amongst the most ancient regulators of protein phosphatase-1 (PP1). It is a small, intrinsically disordered protein that was originally discovered as a potent inhibitor of PP1. However, later investigations also characterized I2 as an activator of PP1 as well as a chaperone for PP1 folding.
Lemaire, Sarah, Bollen, Mathieu
openaire   +3 more sources

Unfair competition governs the interaction of pCPI-17 with myosin phosphatase (PP1-MYPT1). [PDF]

, 2017
The small phosphoprotein pCPI-17 inhibits myosin light-chain phosphatase (MLCP). Current models postulate that during muscle relaxation, phosphatases other than MLCP dephosphorylate and inactivate pCPI-17 to restore MLCP activity.
Eto, Masumi, Filter, Joshua J., Goldberg, Michael L., Shalloway, David, Williams, Byron C.   +4 more
core   +2 more sources

Manzamenones Inhibit T-Cell Protein Tyrosine Phosphatase

Marine Drugs, 2006
: 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, Kunimi Kikuchi, Naohito Aoki, Shinya Mitsuhashi, Tadashi Okada, Hiroshi Shima, Takaaki Kubota, Yusuke Wakuda   +7 more
doaj   +1 more source