{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T12:38:07Z","timestamp":1789821487457,"version":"4.0.1"},"reference-count":31,"publisher":"American Society for Microbiology","issue":"22","license":[{"start":{"date-parts":[[2016,11,15]],"date-time":"2016-11-15T00:00:00Z","timestamp":1479168000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100000060","name":"HHS | NIH | National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["AI106307"],"award-info":[{"award-number":["AI106307"]}],"id":[{"id":"10.13039\/100000060","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2016,11,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>In a negative-strand RNA virus, the genomic RNA is sequestered inside the nucleocapsid when the viral RNA-dependent RNA polymerase uses it as the template for viral RNA synthesis. It must require a conformational change in the nucleocapsid protein (N) to make the RNA accessible to the viral polymerase during this process. The structure of an empty mumps virus (MuV) nucleocapsid-like particle was determined to 10.4-\u212b resolution by cryo-electron microscopy (cryo-EM) image reconstruction. By modeling the crystal structure of parainfluenza virus 5 into the density, it was shown that the \u03b1-helix close to the RNA became flexible when RNA was removed. Point mutations in this helix resulted in loss of polymerase activities. Since the core of N is rigid in the nucleocapsid, we suggest that interactions between this region of the mumps virus N and its polymerase, instead of large N domain rotations, lead to exposure of the sequestered genomic RNA.<\/jats:p>\n          <jats:p>\n            <jats:bold>IMPORTANCE<\/jats:bold>\n            Mumps virus (MuV) infection may cause serious diseases, including hearing loss, orchitis, oophoritis, mastitis, and pancreatitis. MuV is a negative-strand RNA virus, similar to rabies virus or Ebola virus, that has a unique mechanism of viral RNA synthesis. They all make their own RNA-dependent RNA polymerase (RdRp). The viral RdRp uses the genomic RNA inside the viral nucleocapsid as the template to synthesize viral RNAs. Since the template RNA is always sequestered in the nucleocapsid, the viral RdRp must find a way to open it up in order to gain access to the covered template. Our work reported here shows that a helix structural element in the MuV nucleocapsid protein becomes open when the sequestered RNA is released. The amino acids related to this helix are required for RdRp to synthesize viral RNA. We propose that the viral RdRp pulls this helix open to release the genomic RNA.\n          <\/jats:p>","DOI":"10.1128\/jvi.01422-16","type":"journal-article","created":{"date-parts":[[2016,9,1]],"date-time":"2016-09-01T00:21:41Z","timestamp":1472689301000},"page":"10113-10119","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":23,"title":["Releasing the Genomic RNA Sequestered in the Mumps Virus Nucleocapsid"],"prefix":"10.1128","volume":"90","author":[{"given":"Chelsea","family":"Severin","sequence":"first","affiliation":[{"name":"Department of Chemistry, Georgia State University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James R.","family":"Terrell","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Georgia State University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James R.","family":"Zengel","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Cox","sequence":"additional","affiliation":[{"name":"Institute of Biomedical Sciences, Georgia State University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard K.","family":"Plemper","sequence":"additional","affiliation":[{"name":"Institute of Biomedical Sciences, Georgia State University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Biao","family":"He","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Luo","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Georgia State University, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(14)60579-1"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0903812"},{"key":"e_1_3_2_4_2","first-page":"175","article-title":"Mumps outbreak at a summer camp\u2014New York, 2005","volume":"55","author":"Centers for Disease C, Prevention","year":"2006","unstructured":"Centers for Disease C, Prevention. 2006. 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