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Related Concept Videos

Retroviruses02:33

Retroviruses

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Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
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Retrovirus Life Cycles01:10

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Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
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What are Viruses?00:50

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Mechanisms of Retrovirus-induced Cancers01:51

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Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
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Rous Sarcoma Virus (RSV) and Cancer01:03

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Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
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Viral Recombination00:57

Viral Recombination

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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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Inoviruses.

Juan C Burckhardt1, Carolina Tropini1

  • 1School of Biomedical Engineering and Department of Microbiology and Immunology, University of British Columbia, Life Sciences Centre, Room 3557, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada.

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|December 19, 2023
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Summary
This summary is machine-generated.

Inoviruses are a unique class of bacteriophages, distinct from other viruses that infect bacteria. This study introduces inoviruses and highlights their unique characteristics compared to other bacterial viruses.

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Area of Science:

  • Microbiology
  • Virology

Background:

  • Bacteriophages are viruses that infect bacteria.
  • Understanding viral diversity is crucial for microbiology.

Purpose of the Study:

  • Introduce the concept of inoviruses.
  • Discuss the unique features of inoviruses.
  • Compare inoviruses to other bacteriophages.

Main Methods:

  • Literature review
  • Comparative analysis of viral structures and life cycles

Main Results:

  • Inoviruses represent a distinct group of bacteriophages.
  • Key unique characteristics of inoviruses are identified.

Conclusions:

  • Inoviruses possess unique biological and structural properties.
  • Further research into inoviruses can expand our understanding of viral diversity.