Substrates for Protein Phosphatase 2B
Regulation of calcium-induced exocytosis from gastric chief cells by protein phosphatase-2b calcineurin
... of protein phosphatase-2B cyclosporin-A and FK-506 caused a dose-dependent reduction in calcium-induced pepsinogen ...of protein phosphatase-1 and -2A, had no effect on secretion caused ...
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Protein Phosphatase 2B (PP2B, Calcineurin) in Paramecium: Partial Characterization Reveals That Two Members of the Unusually Large Catalytic Subunit Family Have Distinct Roles in Calcium-Dependent Processes
... potential substrates and target structures of CaN/PP2B in Paramecium that could be differentially served by the distinct ...isoforms. Substrates may contain different docking sites for CaN inter- action ...
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Development Of Tools For Phosphosite-Specific Kinase Identification And Discovery Of Phosphatase Substrates
... of protein N-termini were set as variable modifications. Minimum protein and peptide identification probabilities were set at ≤1% false discovery rate (FDR) as determined by a reversed database search and ...
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Receptor protein tyrosine phosphatase signalling in development
... Fig. 4. CD45 potentiates T cell receptor signalling. CD45 dephosphory- lates the inhibitory P.Tyr in the C-terminus of the Src family PTKs, Lck and Fyn, thereby activating their PTK activity. The T cell receptor consists ...
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Therapeutic relevance of the protein phosphatase 2A in cancer
... specific substrates of the Class I subunits and disrupting these substrate-specific interactions may be highly beneficial for sensitizing PLK1- overexpressing ...
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FAM122A, a new endogenous inhibitor of protein phosphatase 2A
... PP2A-Cα protein by the ubiquitination The previous investigations showed that PP2A activity can be regulated by the alteration of protein expression of its subunits, post-translational modifications of ...
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Molecular characterisation of CRYPα, an axonal receptor protein tyrosine phosphatase
... substrates may allow endfeet differentiation and ultimately cloning (or purification) of the CRYPa endfeet-specific ligand. CRYPa, like many other RPTPs, is referred to as an “orphan receptor”, since no ligands ...
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Regulation of Yeast Glycogen Metabolism and Sporulation by Glc7p Protein Phosphatase
... to a naturally occurring one found in another PP1 en- Isolation of mutant glc7 alleles that affect glycogen or zyme (e.g., R42K and A278V). growth traits: Mutant glc7 alleles that exhibited glycogen Glycogen accumulation ...
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Structural and functional basis of protein phosphatase 5 substrate specificity
... Discussion The structure presented here defines the interaction of the Cdc37 substrate with the PPP Ser/Thr phosphatase PP5. The conformation of the substrate is primarily dictated by interac- tions between its ...
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Molecular Interactions among Protein Phosphatase 2A, Tau, and Microtubules
... (MT)-associated protein tau are major components of Alzheimer’s disease paired helical ...of protein phosphatase 2A (PP2A), is localized on MTs, binds directly to tau, and is a major tau phospha- ...
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ACTIVITY 2B - PRECIPITATION TEST FOR PROTEIN
... ACTIVITY 2B PRECIPITATION TEST FOR PROTEIN GROUP 6 BMLS – 2H MARIMON, Dave Michael C. April 21, 2014 MACION, Ayn Rand Louise V. ...
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Dephosphorylation of CDK9 by protein phosphatase 2A and protein phosphatase 1 in Tat activated HIV 1 transcription
... One of the major nuclear subunits of PP1 is Nuclear Inhibitor of PP1 (NIPP1) that binds to the catalytic subu- nit of PP1 and form an inactive holoenzyme complex which can be activated by phosphorylation of NIPP1 ...
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AR-v7 protein expression is regulated by protein kinase and phosphatase
... with protein components that are associated with AR and PI3K/Akt signaling ...and protein expression is differentially ...AR-v7 protein expression, as well as genetic alterations associated with PP-1 ...
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Ca2'/calmodulin-dependent protein kinase II (protein phosphatase/protein phosphorylation)
... For example, it is known that binding of CaM to smooth muscle myosin light chain kinase blocks the phosphorylation of one of the two sites by other protein kinases (15-17).. Based on the[r] ...
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Skeletal muscle protein tyrosine phosphatase activity and tyrosine phosphatase 1B protein content are associated with insulin action and resistance
... PTPase1B protein levels were likewise decreased by 38% in NIDDM subjects (P < ...PTPase1B protein content reflect in vivo insulin sensitivity and are reduced in insulin resistant ...
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Towards the synthesis of novel protein phosphatase inhibitors
... and protein phosphatases (PPs) which regulate the dephosphorylation ...a protein-protein interaction to occur, and thus represents one of the most important means by which eukaryotic cells ...
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The metal face of protein tyrosine phosphatase 1B
... A new paradigm in metallobiochemistry describes the activation of inactive metalloenzymes by metal ion removal. Protein tyrosine phosphatases (PTPs) do not seem to require a metal ion for enzymatic activity. ...
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Herbal formula GAPT prevents beta amyloid deposition induced Ca2+/Calmodulin dependent protein kinase II and Ca2+/Calmodulin dependent protein phosphatase 2B imbalance in APPV717I mice
... (CaM)-dependent protein kinase II (CaMKII) and Ca 2+ /Calmodulin-dependent protein phosphatase 2B (calcineurin, CaN) have been found to play important roles in memory processes and neuronal ...
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PTPA activates protein phosphatase-2A through reducing its phosphorylation at tyrosine-307 with upregulation of protein tyrosine phosphatase 1B
... between protein kinases and phosphatases has been well recognized as the direct cause for the AD-like tau hyperphosphorylation [3] ...tau phosphatase activities and can dephosphory- late tau isolated from ...
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A nuclear protein tyrosine phosphatase is required for the inactivation of Stat1
... Laboratory of Molecular Cell Biology, The Rockefeller University, New York, NY 10021 Contributed by James E. Darnell Jr., July 2, 1999 ABSTRACT The Stat1 activation-inactivation cycle in- volves phosphorylation of Stat1 ...
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