by Gertrud U. Rey Satellite viruses lack one or more of the elements needed to replicate, and thus they depend on co-infection with a helper virus that can provide the missing components. In a well-known example of a satellite-helper system, Hepatitis D virus requires the presence of its helper Hepatitis B virus to make copies …
Hepatitis D virus is a unique human pathogen. With a circular, negative stranded RNA genome of ~1700 nucleotides, it is the smallest known human virus. Formation of the HDV particle depends on co-infection of cells with a helper virus, hepatitis B virus. Once thought to be specific for humans, related viruses have now been identified …
At the University of Zürich, Vincent speaks with virologists Cornel Fraeful, Urs Greber, and Silke Stertz about their careers and their work on AAV2, adenovirus entry, and influenza virus. <span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”></span><span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”></span>&lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; …
Satellites are subviral agents that differ from viroids because they depend on the presence of a helper virus for their propagation. Satellite viruses are particles that contain nucleic acid genomes encoding a structural protein that encapsidates the satellite genome. Satellite RNAs do not encode capsid protein, but are packaged by a protein encoded in the helper virus genome. Satellite …
