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Species difference in ANP32A underlies influenza A virus polymerase host restriction

Influenza pandemics occur unpredictably when zoonotic influenza viruses with novel antigenicity acquire the ability to transmit amongst humans (1). Incompatibilities between avian virus components and the human host limit host range breaches. Barriers include receptor preference, virion stability an...

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Autores principales: Long, Jason S., Giotis, Efstathios S., Moncorgé, Olivier, Frise, Rebecca, Mistry, Bhakti, James, Joe, Morisson, Mireille, Iqbal, Munir, Vignal, Alain, Skinner, Michael A., Barclay, Wendy S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4710677/
https://www.ncbi.nlm.nih.gov/pubmed/26738596
http://dx.doi.org/10.1038/nature16474
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author Long, Jason S.
Giotis, Efstathios S.
Moncorgé, Olivier
Frise, Rebecca
Mistry, Bhakti
James, Joe
Morisson, Mireille
Iqbal, Munir
Vignal, Alain
Skinner, Michael A.
Barclay, Wendy S.
author_facet Long, Jason S.
Giotis, Efstathios S.
Moncorgé, Olivier
Frise, Rebecca
Mistry, Bhakti
James, Joe
Morisson, Mireille
Iqbal, Munir
Vignal, Alain
Skinner, Michael A.
Barclay, Wendy S.
author_sort Long, Jason S.
collection PubMed
description Influenza pandemics occur unpredictably when zoonotic influenza viruses with novel antigenicity acquire the ability to transmit amongst humans (1). Incompatibilities between avian virus components and the human host limit host range breaches. Barriers include receptor preference, virion stability and poor activity of the avian virus RNA-dependent RNA polymerase in human cells (2). Mutants of the heterotrimeric viral polymerase components, particularly PB2 protein, are selected during mammalian adaptation, but their mode of action is unknown (3–6). We show that a species-specific difference in host protein ANP32A accounts for the suboptimal function of avian virus polymerase in mammalian cells. Avian ANP32A possesses an additional 33 amino acids between the LRR and LCAR domains. In mammalian cells, avian ANP32A rescued the suboptimal function of avian virus polymerase to levels similar to mammalian adapted polymerase. Deletion of the avian-specific sequence from chicken ANP32A abrogated this activity whereas its insertion into human ANP32A, or closely related ANP32B, supported avian virus polymerase function. Substitutions, such as PB2 E627K, rapidly selected upon infection of humans with avian H5N1 or H7N9 influenza viruses, adapt the viral polymerase for the shorter mammalian ANP32A. Thus ANP32A represents an essential host partner co-opted to support influenza virus replication and is a candidate host target for novel antivirals.
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spelling pubmed-47106772016-07-07 Species difference in ANP32A underlies influenza A virus polymerase host restriction Long, Jason S. Giotis, Efstathios S. Moncorgé, Olivier Frise, Rebecca Mistry, Bhakti James, Joe Morisson, Mireille Iqbal, Munir Vignal, Alain Skinner, Michael A. Barclay, Wendy S. Nature Article Influenza pandemics occur unpredictably when zoonotic influenza viruses with novel antigenicity acquire the ability to transmit amongst humans (1). Incompatibilities between avian virus components and the human host limit host range breaches. Barriers include receptor preference, virion stability and poor activity of the avian virus RNA-dependent RNA polymerase in human cells (2). Mutants of the heterotrimeric viral polymerase components, particularly PB2 protein, are selected during mammalian adaptation, but their mode of action is unknown (3–6). We show that a species-specific difference in host protein ANP32A accounts for the suboptimal function of avian virus polymerase in mammalian cells. Avian ANP32A possesses an additional 33 amino acids between the LRR and LCAR domains. In mammalian cells, avian ANP32A rescued the suboptimal function of avian virus polymerase to levels similar to mammalian adapted polymerase. Deletion of the avian-specific sequence from chicken ANP32A abrogated this activity whereas its insertion into human ANP32A, or closely related ANP32B, supported avian virus polymerase function. Substitutions, such as PB2 E627K, rapidly selected upon infection of humans with avian H5N1 or H7N9 influenza viruses, adapt the viral polymerase for the shorter mammalian ANP32A. Thus ANP32A represents an essential host partner co-opted to support influenza virus replication and is a candidate host target for novel antivirals. 2016-01-07 /pmc/articles/PMC4710677/ /pubmed/26738596 http://dx.doi.org/10.1038/nature16474 Text en Reprints and permissions information is available at www.nature.com/reprint (http://www.nature.com/reprint) . Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms
spellingShingle Article
Long, Jason S.
Giotis, Efstathios S.
Moncorgé, Olivier
Frise, Rebecca
Mistry, Bhakti
James, Joe
Morisson, Mireille
Iqbal, Munir
Vignal, Alain
Skinner, Michael A.
Barclay, Wendy S.
Species difference in ANP32A underlies influenza A virus polymerase host restriction
title Species difference in ANP32A underlies influenza A virus polymerase host restriction
title_full Species difference in ANP32A underlies influenza A virus polymerase host restriction
title_fullStr Species difference in ANP32A underlies influenza A virus polymerase host restriction
title_full_unstemmed Species difference in ANP32A underlies influenza A virus polymerase host restriction
title_short Species difference in ANP32A underlies influenza A virus polymerase host restriction
title_sort species difference in anp32a underlies influenza a virus polymerase host restriction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4710677/
https://www.ncbi.nlm.nih.gov/pubmed/26738596
http://dx.doi.org/10.1038/nature16474
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