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Singelaviria
''Singelaviria'' is a realm of viruses that includes all DNA viruses that encode major capsid proteins that contain a single vertical jelly roll fold. All viruses in ''Singelaviria'' have two major capsid proteins (MCPs) that both have a single jelly roll (SJR) fold. The MCPs form into pseudohexameric subunits of the viral capsid, which stores the viral deoxyribonucleic acid (DNA), and are vertical, or perpendicular, to the surface of the capsid. Apart from the SJR fold MCP (SJR-MCP), viruses in the realm also share a minor capsid protein (mCP) that also has a vertical SJR, an ATPase that packages viral DNA into the capsid, capsids that are icosahedral in shape, and a lipid membrane inside the capsid that surrounds the viral genome. Viruses in ''Singelaviria'' infect archaea that inhabit highly saline environments and bacteria that inhabit high-temperature environments. Their genomes consist of double-stranded DNA that is either linear or circular in shape. Some viruses in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varidnaviria
''Varidnaviria'' is a realm of viruses that includes all DNA viruses that encode major capsid proteins that contain two vertical jelly roll folds. The major capsid proteins (MCP) form into pseudohexameric subunits of the viral capsid, which stores the viral deoxyribonucleic acid (DNA). The jelly roll folds are vertical, or perpendicular, to the surface of the capsid. Apart from the double jelly roll fold MCP (DJR-MCP), most viruses in the realm share many other characteristics, such as minor capsid proteins (mCP) that has one vertical jelly roll fold, an ATPase that packages viral DNA into the capsid, a DNA polymerase that replicates the viral genome, and capsids that are icosahedral in shape. ''Varidnaviria'' was established in 2019 based on the shared characteristics of the viruses in the realm. There are two kingdoms in the realm: ''Abadenavirae'', which contains all prokaryotic DJR-MCP viruses except tectiviruses, and ''Bamfordvirae'' which contains tectiviruses and al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
