| Literature DB >> 23589019 |
Xin Mu1, Wei Li, Xinlu Wang, Guangxia Gao.
Abstract
HIV-1 utilizes cellular factors for efficient replication. The viral RNA is different from cellular mRNAs in many aspects, and is prone to attacks by cellular RNA quality control systems. To establish effective infection, the virus has evolved multiple mechanisms to protect its RNA. Here, we show that expression of the Y-box binding protein 1 (YB-1) enhanced the production of HIV-1. Downregulation of endogenous YB-1 in producer cells decreased viral production. YB-1 increased viral protein expression by stabilizing HIV-1 RNAs. The stem loop 2 in the HIV-1 RNA packaging signal was mapped to be the YB-1-responsive element. Taken together, these results indicate that YB-1 stabilizes HIV-1 genomic RNA and thereby enhances HIV-1 gene expression and viral production.Entities:
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Year: 2013 PMID: 23589019 PMCID: PMC4875536 DOI: 10.1007/s13238-013-3011-3
Source DB: PubMed Journal: Protein Cell ISSN: 1674-800X Impact factor: 14.870