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Tumor viruses come in a variety of forms: Viruses with a DNA genome, such as adenovirus, and viruses with an RNA genome, like the hepatitis C virus (HCV), can cause cancers, as can retroviruses having both DNA and RNA genomes (Human T-lymphotropic virus and hepatitis B virus, which normally replicates as a mixed double and single-stranded DNA ...
The prototype sequence of MCV has a 5387 base pair double-stranded DNA (dsDNA) genome and encodes characteristic polyomavirus genes from opposite strands including a large T antigen, a small T antigen (LT and sT, respectively, from early strand) and viral capsid proteins VP1 and VP2/3 genes (from late strand) [15] Our Viruses - MCV.
Polyomaviruses are non-enveloped double-stranded DNA viruses with circular genomes of around 5000 base pairs. With such a small size, they are ranked among the smallest known double stranded DNA viruses. [12] The genome is packaged in a viral capsid of about 40-50 nanometers in diameter, which is icosahedral in shape (T=7 symmetry).
The Epstein–Barr virus (EBV), formally called Human gammaherpesvirus 4, is one of the nine known human herpesvirus types in the herpes family, and is one of the most common viruses in humans. EBV is a double-stranded DNA virus. [2] Epstein–Barr virus (EBV) is the first identified oncogenic virus, or a virus that can cause cancer. EBV ...
The sequences that were matched to referenced sequences were predominantly double-stranded DNA bacteriophages and double-stranded algal viruses. [ 10 ] In 2016 the International Committee on Taxonomy of Viruses (ICTV) officially recognized that viral genomes assembled from metagenomic data can be classified using the same procedures for viruses ...
[7] [8] One of the major challenges in cancer treatment is finding treatments that target tumor cells while ignoring non-cancerous host cells. Viruses are chosen because they can target specific receptors expressed by cancer cells that allow for virus entry. One example of this is the targeting of CD46 on multiple myeloma cells by measles virus ...
Non-transductional targeting involves altering the genome of the virus so it can only replicate in cancer cells, most frequently as part of the attenuation of the virus. [87] Transcription targeting can also be used, where critical parts of the viral genome are placed under the control of a tumour-specific promoter.
SV40 is an abbreviation for simian vacuolating virus 40 or simian virus 40, a polyomavirus that is found in both monkeys and humans.Like other polyomaviruses, SV40 is a DNA virus that is found to cause tumors in humans and animals, but most often persists as a latent infection.