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| Content Provider | PubMed Central |
|---|---|
| Author | Hatakeyama, M. Kawahara, A. Mori, H. Shibuya, H. Taniguchi, T. |
| Abstract | Interleukin 2 (IL-2) plays a critical role in the growth and differentiation of lymphoid cells. The IL-2 signal is delivered intracellularly by the IL-2 receptor beta chain (IL-2R beta); however, the mechanism by which the signal reaches the nucleus remains unclear. In this study, we demonstrate the rapid activation of c-fos protooncogene transcription by IL-2 and provide evidence that the serum-responsive element (SRE) within the c-fos promoter is responsible for the activation in a murine pro-B-cell line, BAF-B03, expressing the human IL-2R beta cDNA. Interestingly, the same SRE is also responsible for c-fos gene activation by interleukin 3 or erythropoietin. Further, we show that the activation of c-fos by IL-2 requires defined cytoplasmic regions of IL-2R beta--i.e., the "serine-rich" region, which is known to be essential for growth-signal transduction in BAF-B03 cells, and the "acidic region," which is located more distal to the cell membrane. These results indicate the functional importance of the two distinct regions within the IL-2R beta cytoplasmic domain in IL-2-induced c-fos gene activation and point to a potential role of the acidic region in IL-2 signal transduction that could not be adequately assessed in a previous study. |
| Starting Page | 2022 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 6 |
| Volume Number | 89 |
| Language | English |
| Publisher Date | 1992-03-15 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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