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コンド マユミ
Mayumi Kondo
近土 真由美 所属 川崎医療福祉大学 医療技術学部 臨床工学科 職種 講師 |
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| 論文種別 | 研究論文（学術雑誌） |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | Molecular Evolutionary Analyses of the RNA-Dependent RNA Polymerase (RdRp) Region and VP1 Gene in Human Norovirus Genotypes GII.P6-GII.6 and GII.P7-GII.6. |
| 掲載誌名 | 正式名：Viruses 略 称：Viruses ISSNコード：19994915/19994915 |
| 掲載区分 | 国外 |
| 巻・号・頁 | 15(7) |
| 著者・共著者 | Tomoko Takahashi, Ryusuke Kimura, Tatsuya Shirai, Mitsuru Sada, Toshiyuki Sugai, Kosuke Murakami, Kazuhiko Harada, Kazuto Ito, Yuki Matsushima, Fuminori Mizukoshi, Kaori Okayama, Yuriko Hayashi, Mayumi Kondo, Tsutomu Kageyama, Yoshiyuki Suzuki, Haruyuki Ishii, Akihide Ryo, Kazuhiko Katayama, Kiyotaka Fujita, Hirokazu Kimura |
| 発行年月 | 2023/07/01 |
| 概要 | To understand the evolution of GII.P6-GII.6 and GII.P7-GII.6 strains, the prevalent human norovirus genotypes, we analysed both the RdRp region and VP1 gene in globally collected strains using authentic bioinformatics technologies. A common ancestor of the P6- and P7-type RdRp region emerged approximately 50 years ago and a common ancestor of the P6- and P7-type VP1 gene emerged approximately 110 years ago. Subsequently, the RdRp region and VP1 gene evolved. Moreover, the evolutionary rates were significantly faster for the P6-type RdRp region and VP1 gene than for the P7-type RdRp region and VP1 genes. Large genetic divergence was observed in the P7-type RdRp region and VP1 gene compared with the P6-type RdRp region and VP1 gene. The phylodynamics of the RdRp region and VP1 gene fluctuated after the year 2000. Positive selection sites in VP1 proteins were located in the antigenicity-related protruding 2 domain, and these sites overlapped with conformational epitopes. These results suggest that the GII.6 VP1 gene and VP1 proteins evolved uniquely due to recombination between the P6- and P7-type RdRp regions in the HuNoV GII.P6-GII.6 and GII.P7-GII.6 virus strains. |
| DOI | 10.3390/v15071497 |
| PMID | 37515184 |
| researchmap用URL | https://doi.org/10.3390/v15071497 |