{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T02:37:53Z","timestamp":1772159873190,"version":"3.50.1"},"reference-count":45,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T00:00:00Z","timestamp":1727049600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100009619","name":"Japan Agency for Medical Research and Development","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009619","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Microbiology and Immunology"],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Borna disease virus 1 (BoDV\u20101) causes acute fatal encephalitis in mammals, including humans. Despite its importance, research on BoDV\u20101 cell entry has been hindered by low infectious viral particle production in cells and the lack of cytopathic effects, which are typically useful for screening. To address these issues, we developed a method to efficiently produce vesicular stomatitis virus (VSV) pseudotyped with glycoprotein (G) of members of the genus\n                    <jats:italic>Orthobornavirus<\/jats:italic>\n                    , including BoDV\u20101. We discovered that optimal G expression is required to obtain a high infectivity titer of the VSV pseudotyped virus. Remarkably, the infectivity of the VSV pseudotyped virus with G from the BoDV\u20101 strain huP2br was significantly higher than that of the VSV pseudotyped virus with G from the He\/80 strain. Mutational analysis demonstrated that the methionine at BoDV\u20101\u2013G residue 307 increases the infectivity titer of VSV pseudotyped with BoDV\u20101\u2013G (VSV\u2013BoDV\u20101\u2013G). A cell\u2012cell fusion assay indicated that this residue plays a pivotal role in membrane fusion, thus suggesting that high membrane fusion activity and a broad pH range for membrane fusion are crucial for achieving a high infectivity titer of VSV\u2013BoDV\u20101\u2013G. This finding may be extended to increase the infectivity titer of VSV pseudotyped virus with other orthobornavirus G. Our study also contributes to identifying functional domains of BoDV\u20101\u2013G and provides insight into G\u2010mediated cell entry.\n                  <\/jats:p>","DOI":"10.1111\/1348-0421.13172","type":"journal-article","created":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T05:51:40Z","timestamp":1727070700000},"page":"381-392","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A single amino acid substitution in the Borna disease virus glycoprotein enhances the infectivity titer of vesicular stomatitis virus pseudotyped virus by altering membrane fusion activity"],"prefix":"10.1111","volume":"68","author":[{"given":"Yusa","family":"Akiba","sequence":"first","affiliation":[{"name":"Laboratory of RNA Viruses, Department of Virus Research Institute for Life and Medical Sciences, Kyoto University Kyoto Japan"},{"name":"Department of Mammalian Regulatory Network Graduate School of Biostudies, Kyoto University 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