C1907
Calcineurin from bovine brain
lyophilized powder, ≥2,500 units/mg protein
Sinonimo/i:
Calcium/Calmodulin-Activated Protein Phosphatase, Calmodulin binding protein, Modulator binding protein, PP2B, Phosphoprotein Phosphohydrolase, Protein phosphatase 2B
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About This Item
Prodotti consigliati
Origine biologica
bovine
Livello qualitativo
Forma fisica
lyophilized powder
Attività specifica
≥2,500 units/mg protein
PM
dimer ~77 kDa
subunit mol wt 19-58 kDa
Composizione
Protein, 0.3-1.7% Lowry
Solubilità
H2O: soluble
N° accesso UniProt
Temperatura di conservazione
−20°C
Informazioni sul gene
cow ... PPP3CA(286852)
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Descrizione generale
Calcineurin (CaN) comprises CaN A and CaN B subunits. It exists as a heterodimer with a calmodulin-binding domain, catalytic site, a CaN B binding domain, and an autoinhibitory domain.
Applicazioni
Calcineurin from bovine brain has been used:
- as a positive control in western blot analysis of oocytes and cumulus cells proteome
- as a positive control in calmodulin (CaM)-agarose binding assay
- to test its phosphatase activity in the presence of okadaic acid
Azioni biochim/fisiol
Calcineurin (CaN) activity is stimulated by nickel (Ni2+) and manganese (Mn2+) ions. It participates in the coupling of Ca2+ signals. CaN may regulate oocyte growth and meiotic maturation in porcine. It also participates in gene regulation, cell survival, and death.
Calcineurin is a cyclosporin-sensitive, calcium-regulated, serine-threonine protein phosphatase with broad substrate specificity. It is the major calmodulin-binding protein found in the brain. First identified as an inhibitor of the calmodulin activation of phosphodiesterase 3′:5′ cyclic nucleotide (PDE), calcineurin has similar effects on adenylate cyclase. Serves as a key enzyme involved in T-cell activation. Also involved in the hyperphosphorylation of tau protein in Alzheimer′s disease and has been shown to prevent calpain-mediated proteolysis of tau in differentiated PC12 cells.
Definizione di unità
One unit will cause a 50% inhibition of the activated phosphodiesterase, 3′:5′-cyclic nucleotide (P 9529) activity when assayed with two units of activator (P 2277) and 0.1 mM Ca2+ in an enzyme coupled system at pH 7.5 at 30 °C.
Stato fisico
Lyophilized powder containing 0.5% EGTA, buffer salts and stabilizers.
Risultati analitici
Sigma tests activity in 80 mM Tris, pH 7.5 with 65 mM KCl, 8 mM MgSO4 and 0.3% albumin.
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves
Certificati d'analisi (COA)
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H Q Xie et al.
Journal of neuroscience research, 53(2), 153-164 (1998-07-22)
The effects of calcium influx on tau levels and phosphorylation were examined in differentiated PC12 cells. Maitotoxin-induced calcium influx resulted in time- and concentration-dependent tau dephosphorylation and degradation. Incubation of PC12 cells with a membrane-permeable calpain inhibitor blocked maitotoxin-induced tau
Felicia Ranta et al.
Cellular signalling, 20(10), 1780-1786 (2008-07-10)
Previously, we described that apoptotic cell death induced by the synthetic glucocorticoid dexamethasone (dex) is inhibited by calcineurin inhibitors, FK506 and deltamethrin, in insulin-secreting cells. The aim of the present study was to examine the mechanism of dex-dependent activation of
Lenka Tůmová et al.
Animal reproduction science, 141(3-4), 154-163 (2013-08-27)
The processes of oocyte growth, acquisition of meiotic competence and meiotic maturation are regulated by a large number of molecules. One of them could be calcineurin consisting of catalytic subunit A (Aα, Aβ, Aγ isoforms) and regulatory subunit B (B1
C B Klee et al.
Biochemistry, 17(1), 120-126 (1978-01-10)
The Ca2+-dependent, reversible, interaction of cyclic adenosine 3',5'-monophosphate (cAMP) phosphodiesterase with its activator has been used to purify the enzyme by affinity chromatography. Activator-dependent cAMP phosphodiesterase is only a minor component of the proteins specifically adsorbed in the presence of
C X Gong et al.
Brain research, 741(1-2), 95-102 (1996-11-25)
Abnormally hyperphosphorylated tau is the major protein component of neurofibrillary tangles, the characteristic lesion of Alzheimer's disease (AD). Protein phosphatases (PP) type 1 (PP-1), type 2A (PP-2A) and type 2B (PP-2B) appear to be involved in the regulation of tau
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