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Influenza A virus replication scheme. Click on it for explanations.
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Viruses have been found in all cellular forms of life, from bacteria to chordates. Pathogenic human and animal viruses are causative agents of serious diseases such as AIDS, encephalitides, hepatitides, influenza, SARS, etc. Plant viruses are responsible for many major agricultural problems. Therefore, studying various viruses and their interaction with hosts is a prerequisite for finding remedies against viral diseases and understanding the principles of the organization of life.
A virus is a small, infectious, obligate intracellular parasite, capable of replicating itself in a host cell. Virions are formed by de novo assembly from newly synthesized components: the genome and a number of copies of at least one viral protein.
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A viral genome consists of either single-stranded or double-stranded DNA or RNA in either linear or circular form, and can comprise one or more segments.
Entrez Genomes currently contains 4248 Reference Sequences for 2965 viral genomes and 39 Reference Sequences for viroids.
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[1] |
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[120] |
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[164] |
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[1002] |
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[156] |
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[525] |
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[954] |
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[3] |
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[2] |
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[33] |
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[1] |
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[4] |
To obtain a list of viral genomes belonging to a particular group, family or floating genus, select the taxonomy node name in the select list, then click "Find".
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Alternatively, browse the alphabetical list of all viral genomes or the list of taxonomy groups for which complete genomes are available. |
Revised: September 25, 2012
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