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A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase.
Health Library / Body Systems & Organs / Viruses are microscopic organisms that can infect hosts, like humans, plants or animals. They’re a small piece of genetic information (DNA or RNA) inside of a protective shell (capsid). Some viruses also have an envelope. Viruses can’t reproduce without a host.
A DNA virus has DNA as its genetic material and replicates using a DNA-dependent DNA polymerase. The nucleic acid is usually dsDNA; ssDNA is less common, as during replication, ssDNA typically expands to dsDNA.
A virus has either DNA or RNA genes and is called a DNA virus or a RNA virus, respectively. The vast majority of viruses have RNA genomes. Plant viruses tend to have single-stranded RNA genomes and bacteriophages tend to have double-stranded DNA genomes.
One of the most fundamental distinctions between viruses is whether they contain DNA or RNA. As cellular genetic information is carried in DNA, many DNA viruses rely on cellular machinery for both replication of their genomes and production of mRNA transcripts for gene expression.
DNA Virus Genomes. Most DNA viruses contain a single genome of linear dsDNA. The papovaviruses, comprising the polyoma- and papillomaviruses, however, have circular DNA genomes, about 5.1 and 7.8 kb pairs in size. DsDNA serves as a template both for mRNA and for self-transcription.
A cutting-edge diagnostic test is helping some doctors find diagnoses for medical mysteries by analyzing DNA and RNA to detect a broad swath of viruses, bacteria, fungi and parasites, according to ...
DNA virus encoded proteins interact with host cellular signaling pathways and control proliferation, cell death and genomic integrity viral oncoproteins are known to bind cellular Deubiquitinates (DUBs) such as cyclindromatosis tumor suppressor, ubiquitin-specific proteases 7, 11, 15 and 20, and A-20 to improve their intracellular stability and ...
A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat. A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself.
The human virome comprises bacteriophages (phages) that infect bacteria, viruses that infect other cellular microorganisms such as archaea, viruses that infect human cells and viruses present...