Glucose-induced phosphorylation of the insulin receptor. Functional effects and characterization of phosphorylation sites.
نویسندگان
چکیده
منابع مشابه
Glucose-induced phosphorylation of the insulin receptor. Functional effects and characterization of phosphorylation sites.
Elevated glucose concentrations have been reported to inhibit insulin receptor kinase activity. We studied the effects of high glucose on insulin action in Rat1 fibroblasts transfected with wild-type human insulin receptor (HIRcB) and a truncated receptor lacking the COOH-terminal 43 amino acids (delta CT). In both cell lines, 25 mM glucose impaired receptor and insulin receptor substrate-1 pho...
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Cardiac ryanodine receptor phosphorylation: target sites and functional consequences.
A study by Xiao and co-workers in this issue of the Biochemical Journal demonstrates PKA (protein kinase A)-dependent phosphorylation of Ser-2030 on the cardiac ryanodine receptor (RyR2) that is activated by beta-adrenergic agonists. They show that RyR2 phosphorylation at this site is not appreciably altered in heart failure samples, but retains PKA-dependence of phosphorylation. They contrast ...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1996
ISSN: 0021-9738
DOI: 10.1172/jci118457