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| Content Provider | frontiers |
|---|---|
| Author | Shao, Nan Liu, Bo Xiao, Yan Wang, Xinming Ren, Lili Dong, Jie Sun, Lilian Zhu, Yafang Zhang, Ting Yang, Fan |
| Description | Human parainfluenza viruses (HPIV1–4) cause acute respiratory tract infections, thereby impacting human health worldwide. However, there are no current effective antivirals or licensed vaccines for infection prevention. Moreover, sequence information for human parainfluenza viruses (HPIVs) circulating in China is inadequate. Therefore, to shed light on viral genetic diversity and evolution, we collected samples from patients infected with HPIV1–4 in China from 2012 to 2018 to sequence the viruses. We obtained 24 consensus sequences, comprising 1 for HPIV1, 2 for HPIV2, 19 for HPIV3, and 2 for HPIV4A. Phylogenetic analyses classified the 1 HPIV1 into clade 2, and the 2 HPIV4 sequences into cluster 4A. Based on the hemagglutinin-neuraminidase (HN) gene, a new sub-cluster was identified in one of the HPIV2, namely G1c, and the 19 HPIV3 sequences were classified into the genetic lineages of C3f and C3a. The results indicated that HPIV1–4 were co-circulated in China. Further, the lineages of sub-cluster C3 of HPIV3 were co-circulated in China. A recombination analysis indicated that a putative recombination event may have occurred in the HN gene of HPIV3. In the obtained sequences of HPIV3, we found that two amino acid substitution sites (R73K in the F protein of PUMCH14028/2014 and A281V in the HN protein of PUMCH13961/2014) and a negative selection site (amino acid position 398 in the F protein) corresponded to the previously reported neutralization-related sites. Moreover, a... |
| Abstract | The human parainfluenza viruses (HPIV1–4) impact human health worldwide through acute respiratory tract infections. However, there are no current effective antivirals or licensed vaccines that can prevent infection, and sequence information for Human parainfluenza viruses (HPIVs), epidemic in China, is inadequate. Therefore, to shed further light on viral genetic diversity and evolution, we collected samples from patients infected with HPIV1–4 in China from 2012 to 2018 and sequenced the genetic information of the viruses. We obtained 24 consensus sequences, comprised 1 HPIV1, 2 HPIV2, 19 HPIV3, and 2 HPIV4A. Phylogenetic analyses classified 1 HPIV1 into clade 2, and 2 HPIV4 sequences into cluster 4A. Based on haemagglutinin-neuraminidase (HN) gene, a new sub-cluster was identified in HPIV2, named G1c, and HPIV3 sequences were divided into the genetic lineage of C3a and predominantly C3f. The results indicated that the lineages among sub-cluster C3, and HPIV1 to 4, had co-circulated in China. A recombination analysis indicated that a putative recombination event may have occurred at the HN gene of HPIV3. Furthermore, an amino acid substitution (R73K) in the fusion (F) protein, likely resistant to neutralization by site B monoclonal antibodies (MAbs), naturally occurred in a HPIV3 (PUMCH14028/2014) within C3a. An amino acid substitution (A281V), related to a variant selected with a monoclonal antibody, was found in the HN protein region of another HPIV3 (PUMCH13961/2014) that belonged to C3f. These results might provide support for virus evolution, vaccine development, and HPIV-related respiratory disease monitoring. |
| ISSN | 1664302X |
| DOI | 10.3389/fmicb.2021.679246 |
| Volume Number | 12 |
| Journal | Frontiers in Microbiology |
| Language | English |
| Publisher Date | 2021-07-15 |
| Access Restriction | Open |
| Subject Keyword | Fusion gene Human parainfluenza virus Phylogenetic analysis Recombination analysis Hemagglutinin-Neuraminidase gene Glycosylation site |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology Microbiology (medical) |
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