scholarly journals Phosphorylation of Protein Phosphatase 1 by Cyclin-dependent Protein Kinase 5 during Nerve Growth Factor-induced PC12 Cell Differentiation

2007 ◽  
Vol 282 (9) ◽  
pp. 6619-6628 ◽  
Author(s):  
Tong Li ◽  
Lorraine E. Chalifour ◽  
Hemant K. Paudel
Keyword(s):  
Cell Differentiation ◽  
Nerve Growth Factor ◽  
Growth Factor ◽  
Protein Kinase ◽  
Pc12 Cell ◽  
Protein Phosphatase ◽  
Protein Phosphatase 1 ◽  
Dependent Protein Kinase ◽  
Nerve Growth ◽  
Dependent Protein

scholarly journals Nerve growth factor action is mediated by cyclic AMP- and Ca+2/phospholipid-dependent protein kinases.

1986 ◽  
Vol 103 (3) ◽  
pp. 887-893 ◽  
Author(s):  
J Cremins ◽  
J A Wagner ◽  
S Halegoua
Keyword(s):  
Nerve Growth Factor ◽  
Growth Factor ◽  
Tyrosine Hydroxylase ◽  
Protein Kinase ◽  
Enzyme Activation ◽  
Dependent Protein Kinase ◽  
Nerve Growth ◽  
Camp Dependent Protein Kinase ◽  
Dependent Protein ◽  
Dose Dependent

Nerve growth factor (NGF) mediates the phosphorylation of tyrosine hydroxylase in PC12 cells on two distinct peptide fragments, separable by two-dimensional tryptic phosphopeptide mapping (phosphopeptides T1 and T3). Phorbol diester derivatives capable of activating Ca+2/phospholipid-dependent protein kinase (C-kinase) cause a specific phosphorylation of peptide T3 in a dose-dependent, saturable manner. Derivatives of the endogenous C-kinase activator diacylglycerol, also cause the phosphorylation of tyrosine hydroxylase on peptide T3. The C-kinase inhibitors chlorpromazine and trifluoperazine inhibit the phorbol diester stimulated phosphorylation of site T3 in a dose-dependent manner. These agents inhibit the phosphorylation of T3 in response to NGF, but have no effect on NGF's ability to cause T1 phosphorylation. In a PC12 mutant deficient in cAMP-dependent protein kinase activity, NGF mediates the phosphorylation of tyrosine hydroxylase on peptide T3 but not on T1. We conclude that NGF mediates the activation of both the cAMP-dependent protein kinase and the C-kinase to phosphorylate substrate proteins. These kinases can act independently to phosphorylate tyrosine hydroxylase, each at a different site, and each of which results in the enzyme activation. A molecular framework is thus provided for events underlying NGF action.

Nerve growth factor acts through cAMP-dependent protein kinase to increase the number of sodium channels in PC12 cells

Neuron ◽  
1990 ◽  
Vol 4 (3) ◽  
pp. 355-366 ◽  
Author(s):  
Daniel Kalman ◽  
Bradley Wong ◽  
Andrew E. Horvai ◽  
Martin J. Cline ◽  
Paul H. O'Lague
Keyword(s):  
Nerve Growth Factor ◽  
Growth Factor ◽  
Protein Kinase ◽  
Pc12 Cells ◽  
Sodium Channels ◽  
Dependent Protein Kinase ◽  
Nerve Growth ◽  
Camp Dependent Protein Kinase ◽  
Dependent Protein
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