Title |
Multiple amino acid substitutions involved in the adaptation of avian-origin influenza A (H10N7) virus in mice
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Published in |
Archives of Virology, December 2015
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DOI | 10.1007/s00705-015-2722-6 |
Pubmed ID | |
Authors |
Haibo Wu, Xiuming Peng, Xiaorong Peng, Linfang Cheng, Changzhong Jin, Xiangyun Lu, Tiansheng Xie, Hangping Yao, Nanping Wu |
Abstract |
To identify substitutions that are possibly associated with the adaptation of avian-origin H10N7 virus to mammals, adaptation of the H10N7 virus in mouse lung was carried out by serial lung-to-lung passage. Genomic analysis of the mouse-adapted virus revealed amino acid changes in the PB2 (E627K), PA (T97I), and HA (G409E) proteins, and this virus was more virulent in mice than the wild-type virus. Our results suggest that these substitutions are involved in the enhancement of the replication efficiency of avian-origin H10N7 virus, resulting in severe disease in mice. Continued poultry surveillance of these substitutions in H10N7 viruses is required. |
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Student > Ph. D. Student | 3 | 30% |
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