virion


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Related to virion: viroid, prion

vi·ri·on

 (vī′rē-ŏn′, vîr′ē-)
n.
A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.

virion

(ˈvaɪrɪən)
n
(Biochemistry) a virus in infective form, consisting of an RNA particle within a protein covering
[C20: from vir(us) + ion]

vi•ri•on

(ˈvaɪ riˌɒn, ˈvɪr i-)

n.
the infectious form of a virus as it exists outside the host cell, consisting of a core of DNA or RNA, a protein coat, and, in some species, an external envelope.
[1960–65; < French virion (1959) =viri(en) viral (see virus, -ian) + -on -on1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.virion - (virology) a complete viral particle; nucleic acid and capsid (and a lipid envelope in some viruses)
virus - (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
capsid - the outer covering of protein surrounding the nucleic acid of a virus
subatomic particle, particle - a body having finite mass and internal structure but negligible dimensions
Translations
virion

vi·ri·on

n. virión, partícula viral madura que constituye la forma extracelular infecciosa de un virus.
References in periodicals archive ?
Red: Its Languedoc-Roussillon Costieres de Nimes from Louis Virion is the region's usual blend of syrah, grenache and mourvedre.
ABR's BPyV assay employs proprietary testing methods and an antibody based detection strategy that results in sensitivity of 1 virion.
Studies on human primary immune responses to dengue infection have identified critical attachment sites on the virion for neutralizing antibodies (4).
Subsequently, virion penetrates the cell then makes use of the metabolic machinery and pathways of the living cell to make copies of its nucleic acid and synthesisze protein subunit.
Cilia, Gray, and their partners James Bruce and Juan Chavez of the University of Washington think that the outside shape, or topology, of the virion plays a major role in that specificity, determining whether a virus will be able to move through the aphid and infect a plant.
The topics include the art and science of obtaining virion stocks for experimental human papillomavirus infections, the structure and associations of E6 oncoproteins, the viral deregulation of DNA damage responses, the induction of genomic instability by human papillomavirus oncoproteins, and the role of the immune system in adenoviruses and gene therapy.
Electron microscopy of infected CEL cells showed the presence of hexagonal virion particles measuring in size about 80-100 nm.
inactivated vaccines (split viruses grown in egg and whose virion virus grows in mammalian cells) and live vaccines (cold adapted, temperature sensitive and attenuated viruses grown in eggs).
One of these genes, the virion infectivity factor (vif) encodes a 23 kD protein that counteracts an innate, antiretroviral defense mechanism of CD4+ T helper cells (9), the primary target of HIV (2).
A new class of antiretroviral drugs, the maturation inhibitors, is now emerging, which target the internal structural precursor protein, Gag, and its function in final assembly of the mature infectious virion.
Additionally, methods of determining whether a test compound inhibits HIV-1 virion production in a mammalian cell, or spread of the HIV-1 to another cell, are provided.