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| Content Provider | PubMed Central |
|---|---|
| Author | Braam-markson, J. Jaudon, C. Krug, R. M. |
| Abstract | The gene for the influenza viral PB2 protein, which recognizes and binds the 5'-terminal cap 1 structures (m7GpppNm) on eukaryotic mRNAs, was inserted into a bovine papilloma virus vector under the control of a mouse metallothionein I (MT-I) promoter. After transfection of this vector into mouse NIH 3T3 cells, a cell line, cPB2, was obtained that produces PB2-specific mRNA and authentic PB2 protein. Induction of the MT-I promoter with CdCl2 causes about a 10-fold increase in PB2 mRNA and protein levels. The expressed PB2 protein is functional, as it relieves the block in viral mRNA synthesis exhibited by a temperature-sensitive viral mutant containing a cap-binding defect in the PB2 protein. This demonstrates complementation of a function of a negative-strand RNA virus by a gene product expressed in a cell line from recombinant DNA. |
| Starting Page | 4326 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 13 |
| Volume Number | 82 |
| Language | English |
| Publisher Date | 1985-07-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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