Efficient Reverse Genetic Systems for Rapid Genetic Manipulation of Emergent and Preemergent Infectious Coronaviruses.
Identifieur interne : 000E11 ( Main/Exploration ); précédent : 000E10; suivant : 000E12Efficient Reverse Genetic Systems for Rapid Genetic Manipulation of Emergent and Preemergent Infectious Coronaviruses.
Auteurs : Adam S. Cockrell [États-Unis] ; Anne Beall [États-Unis] ; Boyd Yount [États-Unis] ; Ralph Baric [États-Unis]Source :
- Methods in molecular biology (Clifton, N.J.) [ 1940-6029 ] ; 2017.
Descripteurs français
- KwdFr :
- ADN complémentaire, ARN viral, Animaux, Cellules Vero, Coronavirus (génétique), Génie génétique, Génome viral, Génétique inverse (), Humains, Infections à coronavirus (transmission), Infections à coronavirus (virologie), Maladies transmissibles émergentes (transmission), Maladies transmissibles émergentes (virologie), Plasmides (génétique), Recombinaison génétique, Régulation de l'expression des gènes viraux, Transfection.
- MESH :
- génétique : Coronavirus, Plasmides.
- virologie : Infections à coronavirus, Maladies transmissibles émergentes.
- ADN complémentaire, ARN viral, Animaux, Cellules Vero, Génie génétique, Génome viral, Génétique inverse, Humains, Infections à coronavirus, Maladies transmissibles émergentes, Recombinaison génétique, Régulation de l'expression des gènes viraux, Transfection.
English descriptors
- KwdEn :
- Animals, Chlorocebus aethiops, Communicable Diseases, Emerging (transmission), Communicable Diseases, Emerging (virology), Coronavirus (genetics), Coronavirus Infections (transmission), Coronavirus Infections (virology), DNA, Complementary, Gene Expression Regulation, Viral, Genetic Engineering, Genome, Viral, Humans, Plasmids (genetics), RNA, Viral, Recombination, Genetic, Reverse Genetics (methods), Transfection, Vero Cells.
- MESH :
- chemical : DNA, Complementary, RNA, Viral.
- genetics : Coronavirus, Plasmids.
- methods : Reverse Genetics.
- transmission : Communicable Diseases, Emerging, Coronavirus Infections.
- virology : Communicable Diseases, Emerging, Coronavirus Infections.
- Animals, Chlorocebus aethiops, Gene Expression Regulation, Viral, Genetic Engineering, Genome, Viral, Humans, Recombination, Genetic, Transfection, Vero Cells.
Abstract
Emergent and preemergent coronaviruses (CoVs) pose a global threat that requires immediate intervention. Rapid intervention necessitates the capacity to generate, grow, and genetically manipulate infectious CoVs in order to rapidly evaluate pathogenic mechanisms, host and tissue permissibility, and candidate antiviral therapeutic efficacy. CoVs encode the largest viral RNA genomes at about 28-32,000 nucleotides in length, and thereby complicate efficient engineering of the genome. Deconstructing the genome into manageable fragments affords the plasticity necessary to rapidly introduce targeted genetic changes in parallel and assort mutated fragments while maximizing genome stability over time. In this protocol we describe a well-developed reverse genetic platform strategy for CoVs that is comprised of partitioning the viral genome into 5-7 independent DNA fragments (depending on the CoV genome), each subcloned into a plasmid for increased stability and ease of genetic manipulation and amplification. Coronavirus genomes are conveniently partitioned by introducing type IIS or IIG restriction enzyme recognition sites that confer directional cloning. Since each restriction site leaves a unique overhang between adjoining fragments, reconstruction of the full-length genome can be achieved through a standard DNA ligation comprised of equal molar ratios of each fragment. Using this method, recombinant CoVs can be rapidly generated and used to investigate host range, gene function, pathogenesis, and candidate therapeutics for emerging and preemergent CoVs both in vitro and in vivo.
DOI: 10.1007/978-1-4939-6964-7_5
PubMed: 28508214
Affiliations:
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Le document en format XML
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sortKey="Yount, Boyd" sort="Yount, Boyd" uniqKey="Yount B" first="Boyd" last="Yount">Boyd Yount</name><affiliation wicri:level="2"><nlm:affiliation>Department of Epidemiology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Epidemiology, University of North Carolina-Chapel Hill, Chapel Hill, NC</wicri:regionArea><placeName><region type="state">Caroline du Nord</region></placeName></affiliation></author><author><name sortKey="Baric, Ralph" sort="Baric, Ralph" uniqKey="Baric R" first="Ralph" last="Baric">Ralph Baric</name><affiliation wicri:level="2"><nlm:affiliation>Department of Epidemiology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA. rbaric@email.unc.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Epidemiology, University of North Carolina-Chapel Hill, Chapel Hill, NC</wicri:regionArea><placeName><region 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Rapid intervention necessitates the capacity to generate, grow, and genetically manipulate infectious CoVs in order to rapidly evaluate pathogenic mechanisms, host and tissue permissibility, and candidate antiviral therapeutic efficacy. CoVs encode the largest viral RNA genomes at about 28-32,000 nucleotides in length, and thereby complicate efficient engineering of the genome. Deconstructing the genome into manageable fragments affords the plasticity necessary to rapidly introduce targeted genetic changes in parallel and assort mutated fragments while maximizing genome stability over time. In this protocol we describe a well-developed reverse genetic platform strategy for CoVs that is comprised of partitioning the viral genome into 5-7 independent DNA fragments (depending on the CoV genome), each subcloned into a plasmid for increased stability and ease of genetic manipulation and amplification. Coronavirus genomes are conveniently partitioned by introducing type IIS or IIG restriction enzyme recognition sites that confer directional cloning. Since each restriction site leaves a unique overhang between adjoining fragments, reconstruction of the full-length genome can be achieved through a standard DNA ligation comprised of equal molar ratios of each fragment. Using this method, recombinant CoVs can be rapidly generated and used to investigate host range, gene function, pathogenesis, and candidate therapeutics for emerging and preemergent CoVs both in vitro and in vivo.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Caroline du Nord</li></region></list><tree><country name="États-Unis"><region name="Caroline du Nord"><name sortKey="Cockrell, Adam S" sort="Cockrell, Adam S" uniqKey="Cockrell A" first="Adam S" last="Cockrell">Adam S. Cockrell</name></region><name sortKey="Baric, Ralph" sort="Baric, Ralph" uniqKey="Baric R" first="Ralph" last="Baric">Ralph Baric</name><name sortKey="Beall, Anne" sort="Beall, Anne" uniqKey="Beall A" first="Anne" last="Beall">Anne Beall</name><name sortKey="Yount, Boyd" sort="Yount, Boyd" uniqKey="Yount B" first="Boyd" last="Yount">Boyd Yount</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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