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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Goritchenko, Luda Greengard, Paul Irwin, Nina Chao, Steven Horiuchi, Atsuko Nairn, Angus C. Benowitz, Larry I. |
| Description | Author Affiliation: Irwin N ( Department of Neurosurgery, Children's Hospital, Boston, MA 02115, USA.); |
| Abstract | The membrane phosphoprotein GAP-43 is involved in axon growth and synaptic plasticity. In PC12 pheochromocytoma cells, induction of a neuronal phenotype by nerve growth factor (NGF) is accompanied by a marked increase in GAP-43 levels. NGF regulates GAP-43 expression by altering the half-life of its mRNA. We report here that the phosphoprotein ARPP-19 mediates this regulation. In an NGF-dependent manner, ARPP-19 bound to a region in the 3' end of GAP-43 mRNA previously found to be important for regulating the half-life of the mRNA. Overexpression of wild-type ARPP-19 in PC12 cells increased the NGF-dependent expression of a reporter construct linked to the critical 3' region of GAP-43 mRNA. Mutation of serine 104, the site of phosphorylation by protein kinase A in ARPP-19, to either alanine or aspartate abolished this regulation in PC12 cells. These findings demonstrate that ARPP-19 is an important link between NGF signaling and post-transcriptional control of neuronal gene expression. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 19 |
| Volume Number | 99 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2002-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | GAP-43 Protein Genetics Nerve Growth Factor Pharmacology Phosphoproteins Metabolism RNA, Messenger Animals Binding Sites Gene Expression Regulation Molecular Sequence Data Mutagenesis, Site-Directed PC12 Cells Chemistry Protein Processing, Post-Translational RNA Stability Drug Effects Sequence Homology, Nucleic Acid Serine Signal Transduction Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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