| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Identification of RNA regions that determine temperature sensitivities in betanodaviruses |
|
言語 |
en |
| 作成者 |
Hata, Naomi
Okinaka, Yasushi
Iwamoto, Tokinori
Kawato, Yasuhiko
Mori, Koh-Ichiro
Nakai, Toshihiro
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2010 Springer |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
betanodavirus |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
temperature sensitivity |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
reassortant |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
chimeric virus |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
viral growth |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
RNA replication |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
460 |
| 内容記述 |
|
|
内容記述 |
Betanodaviruses, the causative agents of viral nervous necrosis in marine fish, have bipartite positive-sense RNA genomes. The larger genomic segment, RNA1 (similar to 3.1 kb), encodes an RNA-dependent RNA polymerase (protein A), and the smaller genomic segment RNA2 (similar to 1.4 kb) codes for the coat protein. These viruses can be classified into four genotypes, designated striped jack nervous necrosis virus (SJNNV), redspotted grouper nervous necrosis virus (RGNNV), tiger puffer nervous necrosis virus (TPNNV), and barfin flounder nervous necrosis virus (BFNNV), based on similarities in their partial RNA2 sequences. The optimal temperatures for the growth of these viruses are 20-25A degrees C (SJNNV), 25-30A degrees C (RGNNV), 20A degrees C (TPNNV), and 15-20A degrees C (BFNNV). However, little is known about the mechanisms underlying the temperature sensitivity of these viruses. We first constructed two reassortants between SJNNV and RGNNV to test their temperature sensitivity. The levels of viral growth and RNA replication of these reassortants and parental viruses in cultured fish cells were similar at 25A degrees C. However, the levels of all of the viruses but RGNNV were markedly reduced at 30A degrees C. These results indicate that both RNA1 and RNA2 control the temperature sensitivity of betanodaviruses by modulating RNA replication or earlier viral growth processes. We then constructed ten mutated RGNNVs, the RNA1 segments of which were chimeric between SJNNV and RGNNV, and showed that only chimeric viruses bearing the RGNNV RNA1 region, encoding amino acid residues 1-445, grew similarly to the parental RGNNV at 30A degrees C. This portion of protein A is known to serve as a mitochondrial-targeting signal rather than functioning as an enzymatic domain. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Springer Wien |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
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|
関連名称 |
The original publication is available at www.springerlink.com |
| 関連情報 |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1007/s00705-010-0736-7 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1007/s00705-010-0736-7 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0304-8608 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00548901 |
| 開始ページ |
|
|
開始ページ |
1597 |
| 書誌情報 |
Archives of Virology
Archives of Virology
巻 155,
号 10,
p. 1597-1606,
発行日 2010-10
|
| 旧ID |
30810 |
ArchVirol_155_1597.pdf (1.8 MB)
