نتایج جستجو برای: phosphoprotein
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We are amidst a global addiction crisis, yet stigmas surrounding counterintuitively prevail. Understanding and appreciating the neurobiology of is essential to dissolve this stigma for development new pharmacological agents improve upon currently narrow therapeutic options. This review highlights evaluates dopamine-and-cAMP-regulated phosphoprotein, Mr 32 kDa (DARPP-32) as potential target trea...
Protein phosphokinases were isolated from the nuclei of normal and fetal liver and neoplastic tissues. Chromatography on phosphocellulose columns resolved the normal and fetal liver kinases into five reproducible fractions. Each of the fractions differed in optimal divalent cation and substrate requirements. Hepatic proliferation was accompanied by quantitative changes in the kinase activity pr...
Synchronous exocytosis in Paramecium cells involves the rapid (less than or equal to 1 s) dephosphorylation of a 65-kD phosphoprotein, which, after a lag phase of approximately 5 s, is reversed within approximately 20 s. Exocytosis inhibitors suppress this reaction; stimulatory and inhibitory effects are dose dependent. The dephosphorylation of the 65-kD phosphoprotein occurs only in exocytosis...
A novel peptide substrate for adenosine 3',5'-cyclic monophosphate-dependent protein kinase (ATP:protein phosphotransferase, EC 2.7.1.37), Leu-Arg-Arg-Trp-Ser-Leu-Gly, was synthesized. Phosphorylation of the peptide causes a 20% increase in the peptide fluorescence intensity at 358 nm. Values of Km and kcat for the phosphorylation reaction at pH 7.0 (25 degrees C), were determined to be 2.7 +/-...
The dentin matrix acidic phosphoprotein gene has been mapped to human chromosome 4q21 and mouse chromosome 5q21. Expression studies have implicated a role for this gene in the mineralization of dentin. In the current investigation, a cDNA encoding bovine dentin matrix acidic phosphoprotein has been cloned and sequenced. A comparison of the bovine gene with its rat counterpart has indicated that...
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