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10.1128/jvi.77.22.12243-12251.2003 http://scihub22266oqcxt.onion/10.1128/jvi.77.22.12243-12251.2003 C254253!254253 !14581561     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=14581561 &cmd=llinks): Failed to open stream: HTTP request failed! 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Borna disease virus phosphoprotein represses p53-mediated transcriptional activity by interference with HMGB1 |pdf=|usr=}}{{14581561 }} gab.com Text Borna disease virus phosphoprotein represses p53-mediated transcriptional activity by interference with HMGB1 JO: J Virol http://www.kidney.de/pget.php?&tw=1&pmid=14581561 #FOAvip Borna disease virus (BDV) is a noncytolytic, neurotropic RNA virus that has a broad host range in warm-blooded animals, probably including humans. Recently, it was demonstrated that a 24-kDa phosphoprotein (P) of BDV directly binds to a multifunctional protein, amphoterin-HMGB1, and inhibits its function in cultured neural cells (W. Kamitani, Y. Shoya, T. Kobayashi, M. Watanabe, B. J. Lee, G. Zhang, K. Tomonaga, and K. Ikuta, J. Virol. 75:8742-8751, 2001). This observation suggested that expression of BDV P may cause deleterious effects in cellular functions by interference with HMGB1. In this study, we further investigated the significance of the binding between P and HMGB1. We demonstrated that P directly binds to the A-box domain on HMGB1, which is also responsible for interaction with a tumor suppression factor, p53. Recent works have demonstrated that binding between HMGB1 and p53 enhances p53-mediated transcriptional activity. Thus, we examined whether BDV P affects the transcriptional activity of p53 by interference with HMGB1. Mammalian two-hybrid analysis revealed that p53 and P competitively interfere with the binding of each protein to HMGB1 in a p53-deficient cell line, NCI-H1299. In addition, P was able to significantly decrease p53-mediated transcriptional activation of the cyclin G promoter. Furthermore, we showed that activation of p21(waf1) expression was repressed in cyclosporine-treated BDV-infected cells, as well as p53-transduced NCI-H1299 cells. These results suggested that BDV P may be a unique inhibitor of p53 activity via binding to HMGB1. Twit Text FOAVip Borna disease virus phosphoprotein represses p53-mediated transcriptional activity by interference with HMGB1 ????J Virol http://www.kidney.de/pget.php?&tw=1&pmid=14581561 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=14581561 #FOAvip English Wikipedia <ref>{{Cite pmid|14581561 }}</ref> Borna disease virus phosphoprotein represses p53-mediated transcriptional activity by interference with HMGB1 #MMPMID14581561 Zhang G ; Kobayashi T ; Kamitani W ; Komoto S ; Yamashita M ; Baba S ; Yanai H ; Ikuta K ; Tomonaga K J Virol 2003[Nov]; 77 (22 ): 12243-51 PMID14581561 show ga Borna disease virus (BDV) is a noncytolytic, neurotropic RNA virus that has a broad host range in warm-blooded animals, probably including humans. Recently, it was demonstrated that a 24-kDa phosphoprotein (P) of BDV directly binds to a multifunctional protein, amphoterin-HMGB1, and inhibits its function in cultured neural cells (W. Kamitani, Y. Shoya, T. Kobayashi, M. Watanabe, B. J. Lee, G. Zhang, K. Tomonaga, and K. Ikuta, J. Virol. 75:8742-8751, 2001). This observation suggested that expression of BDV P may cause deleterious effects in cellular functions by interference with HMGB1. In this study, we further investigated the significance of the binding between P and HMGB1. We demonstrated that P directly binds to the A-box domain on HMGB1, which is also responsible for interaction with a tumor suppression factor, p53. Recent works have demonstrated that binding between HMGB1 and p53 enhances p53-mediated transcriptional activity. Thus, we examined whether BDV P affects the transcriptional activity of p53 by interference with HMGB1. Mammalian two-hybrid analysis revealed that p53 and P competitively interfere with the binding of each protein to HMGB1 in a p53-deficient cell line, NCI-H1299. In addition, P was able to significantly decrease p53-mediated transcriptional activation of the cyclin G promoter. Furthermore, we showed that activation of p21(waf1) expression was repressed in cyclosporine-treated BDV-infected cells, as well as p53-transduced NCI-H1299 cells. These results suggested that BDV P may be a unique inhibitor of p53 activity via binding to HMGB1. |*Transcriptional Activation [MESH] |Animals [MESH] |Binding, Competitive [MESH] |Borna disease virus/*physiology [MESH] |Cell Line, Tumor [MESH] |Cyclin G [MESH] |Cyclin G1 [MESH] |Cyclin-Dependent Kinase Inhibitor p21 [MESH] |Cyclins/genetics [MESH] |DNA/metabolism [MESH] |HMGB1 Protein/chemistry/*metabolism [MESH] |Rats [MESH] |Tumor Suppressor Protein p53/*antagonists & inhibitors/physiology [MESH]Borna disease virus phosphoprotein represses p53-mediated transcriptio(epmc).pdf DeepDyve Pubget Overpricing