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| Content Provider | PubMed Central |
|---|---|
| Author | Watson, G. Paigen, K. |
| Abstract | A method was developed for measuring in vivo rates of mRNA synthesis in mice by pulse-labeling with the RNA precursor [3H]orotate and then using hybridization to recover specific mRNAs. The efficiency of recovery is determined with synthetic RNAs as internal hybridization standards. The method is particularly applicable to the kidney since this organ shows a strong preferential uptake of the label. Rates of synthesis, expressed as a fraction of total RNA synthesis, were measured for the androgen-inducible mRNAs coding for beta-glucuronidase (GUS), ornithine decarboxylase (ODC), the protein coded by the RP-2 gene, and the so-called kidney androgen-regulated protein (KAP). Control mRNAs coded for beta-actin, phosphoenolpyruvate carboxykinase, and major urinary protein. Testosterone markedly increased the synthesis of the androgen-inducible mRNAs, but not the control mRNAs. Induction was not seen in mutant mice lacking functional androgen receptor protein. For GUS, ODC, and RP-2 mRNAs, the fold induction of synthesis was less than the fold induction of concentration, suggesting that mRNA stabilization also plays a part in the response to androgen. For GUS, ODC, and RP-2 mRNAs, but not KAP mRNA, induction of synthesis was rapidly reversed after testosterone removal. KAP mRNA was also exceptional in that its concentration was disproportionately high compared with its rate of synthesis, implying that it is a particularly stable mRNA. |
| Starting Page | 2117 |
| File Format | |
| ISSN | 10985549 |
| e-ISSN | 10985549 |
| Journal | Molecular and Cellular Biology |
| Issue Number | 5 |
| Volume Number | 8 |
| Language | English |
| Publisher Date | 1988-05-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Molecular Biology |
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