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| Content Provider | PubMed Central |
|---|---|
| Author | Pickar, Adrian Elson, Andrew Yang, Yang Pei, Xu Luo, Ming Biao, He |
| Editor | Lyles, D. S. |
| Copyright Year | 2015 |
| Abstract | The mumps virus (MuV) genome encodes a phosphoprotein (P) that is important for viral RNA synthesis. P forms the viral RNA-dependent RNA polymerase with the large protein (L). P also interacts with the viral nucleoprotein (NP) and self-associates to form a homotetramer. The P protein consists of three domains, the N-terminal domain (PN), the oligomerization domain (PO), and the C-terminal domain (PC). While PN is known to relax the NP-bound RNA genome, the roles of PO and PC are not clear. In this study, we investigated the roles of PO and PC in viral RNA synthesis using mutational analysis and a minigenome system. We found that PN and PC functions can be trans-complemented. However, this complementation requires PO, indicating that PO is essential for P function. Using this trans-complementation system, we found that P forms parallel dimers (PN to PN and PC to PC). Furthermore, we found that residues R231, K238, K253, and K260 in PO are critical for P's functions. We identified PC to be the domain that interacts with L. These results provide structure-function insights into the role of MuV P. |
| Related Links | http://dx.doi.org/10.1128/jvi.01719-15 |
| Ending Page | 11010 |
| Page Count | 9 |
| Starting Page | 11002 |
| File Format | |
| ISSN | 0022538X |
| e-ISSN | 10985514 |
| Journal | Journal of Virology |
| Issue Number | 21 |
| Volume Number | 89 |
| Language | English |
| Publisher | American Society for Microbiology |
| Publisher Date | 2015-11-01 |
| Access Restriction | Open |
| Rights Holder | American Society for Microbiology |
| Subject Keyword | Immunology Virology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology Immunology Microbiology Insect Science |
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