{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T22:12:39Z","timestamp":1791065559245,"version":"4.1.0"},"reference-count":50,"publisher":"American Society for Microbiology","issue":"12","license":[{"start":{"date-parts":[[2013,6,15]],"date-time":"2013-06-15T00:00:00Z","timestamp":1371254400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2013,6,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>p53, a member of the innate immune system, is triggered under stress to induce cell growth arrest and apoptosis. Thus, p53 is an important target for viruses, as efficient infection depends on modulation of the host apoptotic machinery. This study focuses on how rotaviruses manipulate intricate p53 signaling for their advantage. Analysis of p53 expression revealed degradation of p53 during initial stages of rotavirus infection. However, in nonstructural protein-1 (NSP1) mutant strain A5-16, p53 degradation was not observed, suggesting a role of NSP1 in this process. This function of NSP1 was independent of its interferon or phosphatidylinositol 3-kinase (PI3K)\/AKT modulation activity since p53 degradation was observed in Vero cells as well as in the presence of PI3K inhibitor. p53 transcript levels remained the same in SA11-infected cells (at 2 to 14 h postinfection), but p53 protein was stabilized only in the presence of MG132, suggesting a posttranslational process. NSP1 interacted with the DNA binding domain of p53, resulting in ubiquitination and proteasomal degradation of p53. Degradation of p53 during initial stages of infection inhibited apoptosis, as the proapoptotic genes PUMA and Bax were downregulated. During late viral infection, when progeny dissemination is the main objective, the NSP1-p53 interaction was diminished, resulting in restoration of the p53 level, with initiation of proapoptotic signaling ensuing. Overall results highlight the multiple strategies evolved by NSP1 to combat the host immune response.<\/jats:p>","DOI":"10.1128\/jvi.00734-13","type":"journal-article","created":{"date-parts":[[2013,4,11]],"date-time":"2013-04-11T02:56:54Z","timestamp":1365649014000},"page":"6840-6850","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":44,"title":["Rotavirus-Encoded Nonstructural Protein 1 Modulates Cellular Apoptotic Machinery by Targeting Tumor Suppressor Protein p53"],"prefix":"10.1128","volume":"87","author":[{"given":"Rahul","family":"Bhowmick","sequence":"first","affiliation":[{"name":"Division of Virology, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Umesh Chandra","family":"Halder","sequence":"additional","affiliation":[{"name":"Division of Virology, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiladitya","family":"Chattopadhyay","sequence":"additional","affiliation":[{"name":"Division of Virology, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mukti Kant","family":"Nayak","sequence":"additional","affiliation":[{"name":"Department of Zoology, University of Calcutta, Ballygunge, Kolkata, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mamta","family":"Chawla-Sarkar","sequence":"additional","affiliation":[{"name":"Division of Virology, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/278261a0"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/0092-8674(79)90293-9"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1038\/4661054a"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrm2147"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/35042675"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.78.4.1675-1684.2004"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.3390\/v2010298"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1004110107"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1172\/JCI11918"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1000530"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1101\/gad.926401"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0025981"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.72.2.1165-1170.1998"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.91.6.2230"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M111.335422"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.78.15.8068-8077.2004"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1128\/jvi.68.5.2869-2878.1994"},{"key":"e_1_3_3_19_2","first-page":"1917","volume-title":"Fields virology","author":"Estes MK","year":"2007","unstructured":"EstesMK KapikianAZ. 2007. 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