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| 1 | A cellular response protein induced during HSV-1 infection inhibits viral replication by interacting with ATF5显示文摘Studies of herpes simplex virus type 1(HSV-1)infection have shown that many known and unknown cellular molecules involved in viral proliferation are up-regulated following HSV-1 infection.In this study,using two-dimensional polyacrylamide gel electrophoresis,we found that the expression of the HSV-1 infection response repressive protein(HIRRP,GI 16552881)was up-regulated in human L02 cells infected with HSV-1.HIRRP,an unknown protein,was initially localized in the cytoplasm and then translocated into the nucleus of HSV-1-infected cells.Further analysis showed that HIRRP represses HSV-1proliferation by inhibiting transcription of the viral genome by interacting with the cellular transcription factor,ATF5,via its N-terminal domain.ATF5 represses the transcription of many host genes but can also act as an activator of genes containing a specific motif.We found that ATF5 promotes the proliferation of HSV-1 via a potential mechanism by which ATF5 enhances the transcription of viral genes during the course of an HSV-1 infection;HIRRP then induces feedback repression of this transcription by interacting with ATF5. | WU LianQiu ZHANG XueMei CHE YanChun ZHANG Ying TANG SongQing LIAO Yun NA RuiXiong XIONG XiangLin LIU LongDing LI QiHan | 2013 | Science China(Life Sciences)2013，56，12： | 2 |
| 2 | Biological Analysis of HSV-1 Immediate-early Proteins ICP0, ICP22, and ICP27 in Neuroblastoma Cells显示文摘The three immediate-early proteins of HSV-1, ICP0, ICP22, and ICP27, have specific and pivotal functions in transcriptional activation and inhibition, multiple regulatory and control processes of viral genes. In this paper, the expression and localization of these three proteins were studied in neuroblastoma cells using biochemical assays, and their possible and potential interactive functions are discussed. The data show that the three proteins are localized in different structures, specifically in the PML-NB-associated structure, which is a specific nuclear structure composed of many protein molecules and bound tightly to the nuclear matrix in neuroblastoma cells. The results suggest that the activating and suppressive functions of ICPs are mostly dependent on their transcriptional and regulatory roles, including the PML-NB-associated structure. | Long-ding LIU Qi-han LI | 2008 | Virologica Sinica2008，23，4： | 0 |
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