scispace - formally typeset
Open AccessJournal ArticleDOI

Infectious RNA transcribed in vitro from a cDNA copy of the human coronavirus genome cloned in vaccinia virus

TLDR
A reverse-genetic system is described for the generation of recombinant coronaviruses based upon the in vitro transcription of infectious RNA from a cDNA copy of the human coronavirus 229E genome that has been cloned and propagated in vaccinia virus.
Abstract
The coronavirus genome is a positive-strand RNA of extraordinary size and complexity. It is composed of approximately 30000 nucleotides and it is the largest known autonomously replicating RNA. It is also remarkable in that more than two-thirds of the genome is devoted to encoding proteins involved in the replication and transcription of viral RNA. Here, a reverse-genetic system is described for the generation of recombinant coronaviruses. This system is based upon the in vitro transcription of infectious RNA from a cDNA copy of the human coronavirus 229E genome that has been cloned and propagated in vaccinia virus. This system is expected to provide new insights into the molecular biology and pathogenesis of coronaviruses and to serve as a paradigm for the genetic analysis of large RNA virus genomes. It also provides a starting point for the development of a new class of eukaryotic, multi-gene RNA vectors that are able to express several proteins simultaneously.

read more

Citations
More filters
Book ChapterDOI

The molecular biology of coronaviruses.

TL;DR: This review summarizes both classical and contemporary discoveries in the study of the molecular biology of these infectious agents, with particular emphasis on the nature and recognition of viral receptors, viral RNA synthesis, and the molecular interactions governing virion assembly.
Journal ArticleDOI

Coronavirus biology and replication: implications for SARS-CoV-2.

TL;DR: The first discoveries that shape the current understanding of SARS-CoV-2 infection throughout the intracellular viral life cycle are summarized and relate that to the knowledge of coronavirus biology.
Journal ArticleDOI

Identification of a new human coronavirus

TL;DR: A new group 1 coronavirus, HCoV-NL63, was identified in a 7-month-old child suffering from bronchiolitis and conjunctivitis as discussed by the authors.
Journal ArticleDOI

Coronavirus Pathogenesis and the Emerging Pathogen Severe Acute Respiratory Syndrome Coronavirus

TL;DR: The data gathered on the animal coronaviruses continue to be helpful in understanding SARS-CoV, and the progress in vaccine development and antiviral therapies is discussed.
Journal ArticleDOI

Mechanisms and enzymes involved in SARS coronavirus genome expression.

TL;DR: The availability of recombinant forms of key replicative enzymes of SARS coronavirus should pave the way for high-throughput screening approaches to identify candidate inhibitors in compound libraries.
References
More filters
Book ChapterDOI

The molecular biology of coronaviruses

TL;DR: This chapter discusses the manipulation of clones of coronav virus and of complementary DNAs of defective-interfering RNAs to study coronavirus RNA replication, transcription, recombination, processing and transport of proteins, virion assembly, identification of cell receptors for coronaviruses, and processing of the polymerase.
Journal ArticleDOI

Virus-encoded proteinases and proteolytic processing in the Nidovirales.

TL;DR: This paper presents a meta-anatomy of the EMMARM, a probabilistic model of the immune response to EMT, which states that EMTs are more likely to attack the nervous system than the immune systems of mice.
Journal ArticleDOI

Retargeting of Coronavirus by Substitution of the Spike Glycoprotein Ectodomain: Crossing the Host Cell Species Barrier

TL;DR: FMHV is potentially the ideal recipient virus for carrying out reverse genetics of MHV by targeted RNA recombination, since it presents the possibility of selecting recombinants that have regained the ability to replicate in murine cells.
Related Papers (5)