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Rules governing genetic exchanges among viral types from different Enterovirus A clusters
The species Enterovirus A (EV-A) consists of two conventional clusters and one unconventional cluster. At present, sequence analysis shows no evidence of recombination between conventional and unconventional EV-A types. However, the factors underlying this genetic barrier are unclear. Here, we syste...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Microbiology Society
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7879560/ https://www.ncbi.nlm.nih.gov/pubmed/32762804 http://dx.doi.org/10.1099/jgv.0.001479 |
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author | Wang, Min Zhu, Liuyao Fan, Jun Yan, Jingjing Dun, Ying Yu, Rui Liu, Lizhen Zhang, Shuye |
author_facet | Wang, Min Zhu, Liuyao Fan, Jun Yan, Jingjing Dun, Ying Yu, Rui Liu, Lizhen Zhang, Shuye |
author_sort | Wang, Min |
collection | PubMed |
description | The species Enterovirus A (EV-A) consists of two conventional clusters and one unconventional cluster. At present, sequence analysis shows no evidence of recombination between conventional and unconventional EV-A types. However, the factors underlying this genetic barrier are unclear. Here, we systematically dissected the genome components linked to these peculiar phenomena, using the viral reverse genetic tools. We reported that viral capsids of the unconventional EV-A types expressed poorly in human cells. The trans-encapsidation outputs across conventional and unconventional EV-A types were also with low efficiency. However, replicons of conventional types bearing exchanged 5′-untranslated region (UTR) or non-structural regions from the unconventional types were replication-competent. Furthermore, we created a viable recombinant EVA71 (conventional type) with its P3 region replaced by that from EVA89 (unconventional type). Thus, our data for the first time reveal the potential for fertile genetic exchanges between conventional and unconventional EV-A types. It also discloses that the mysterious recombination barriers may lie in uncoordinated capsid expression and particle assembly by different EV-A clusters. |
format | Online Article Text |
id | pubmed-7879560 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Microbiology Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-78795602021-02-12 Rules governing genetic exchanges among viral types from different Enterovirus A clusters Wang, Min Zhu, Liuyao Fan, Jun Yan, Jingjing Dun, Ying Yu, Rui Liu, Lizhen Zhang, Shuye J Gen Virol Research Article The species Enterovirus A (EV-A) consists of two conventional clusters and one unconventional cluster. At present, sequence analysis shows no evidence of recombination between conventional and unconventional EV-A types. However, the factors underlying this genetic barrier are unclear. Here, we systematically dissected the genome components linked to these peculiar phenomena, using the viral reverse genetic tools. We reported that viral capsids of the unconventional EV-A types expressed poorly in human cells. The trans-encapsidation outputs across conventional and unconventional EV-A types were also with low efficiency. However, replicons of conventional types bearing exchanged 5′-untranslated region (UTR) or non-structural regions from the unconventional types were replication-competent. Furthermore, we created a viable recombinant EVA71 (conventional type) with its P3 region replaced by that from EVA89 (unconventional type). Thus, our data for the first time reveal the potential for fertile genetic exchanges between conventional and unconventional EV-A types. It also discloses that the mysterious recombination barriers may lie in uncoordinated capsid expression and particle assembly by different EV-A clusters. Microbiology Society 2020-11 2020-08-07 /pmc/articles/PMC7879560/ /pubmed/32762804 http://dx.doi.org/10.1099/jgv.0.001479 Text en © 2020 The Authors http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution NonCommercial License. |
spellingShingle | Research Article Wang, Min Zhu, Liuyao Fan, Jun Yan, Jingjing Dun, Ying Yu, Rui Liu, Lizhen Zhang, Shuye Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title | Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title_full | Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title_fullStr | Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title_full_unstemmed | Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title_short | Rules governing genetic exchanges among viral types from different Enterovirus A clusters |
title_sort | rules governing genetic exchanges among viral types from different enterovirus a clusters |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7879560/ https://www.ncbi.nlm.nih.gov/pubmed/32762804 http://dx.doi.org/10.1099/jgv.0.001479 |
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