Phosphorylation of Paramyxovirus Phosphoprotein and its Role in Viral Gene Expression
- 18 December 2009
- journal article
- review article
- Published by Informa UK Limited in Future Microbiology
- Vol. 5 (1), 9-13
- https://doi.org/10.2217/fmb.09.93
Abstract
Paramyxoviruses include many important human and animal pathogens such as measles virus, mumps virus, human parainfluenza viruses, and respiratory syncytial virus, as well as emerging viruses such as Nipah virus and Hendra virus. The paramyxovirus RNA-dependent RNA polymerase consists of the phosphoprotein (P) and the large protein. Both of these proteins are essential for viral RNA synthesis. The P protein is phosphorylated at multiple sites, probably by more than one host kinase. While it is thought that the phosphorylation of P is important for its role in viral RNA synthesis, the precise role of P protein phosphorylation remains an enigma. For instance, it was demonstrated that the putative CKII phosphorylation sites of the P protein of respiratory syncytial virus play a role in viral RNA synthesis using a minigenome replicon system; however, mutating these putative CKII phosphorylation sites within a viral genome had no effect on viral RNA synthesis, leading to the hypothesis that P protein phosphory...Keywords
Funding Information
- National Institutes of Health (AI065795, AI070847)
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