virion

(redirected from Virions)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to Virions: Viroids, Prions

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 ?
The three objectives of this research project are to: (i) identify the structural basis of subunitrecognition that guides assembly of large icosahedral capsids of type ranaviruses and elucidate the functionof the internal membrane in this process, (ii) determine the conformational changes that accompanymaturation of ranavirus capsids and regulate the headful packaging of the dsDNA genome, and (iii) ascertainthe mechanisms of cell entry by the naked capsids and enveloped ranavirus virions.
The primary objective is to determine the presence of wild-type reovirus in the resected tumours as assessed by immunohistochemistry, RNA in-situ hybridization and retrieval of infectious virions.
According to the study, viral proteins are essential for the assembly of newly produced infectious virions.
Identification of human neutralizing antibodies that bind to complex epitopes on dengue virions.
There are formed as a result of an accumulation of virions or viral components, although some inclussion bodies may not contain virions.
They also determined the gene coding for the phage endolysin that's responsible for degrading cell walls before the release of certain virus particles known as virions.
The surface morphology and phase of pinostrobin-treated virions changed in a time- and concentration-dependent manner (Figs.
Bright explained that although VLPs contain multiple influenza proteins to resemble virions, they contain no genetic material, and therefore they do not replicate or cause infection.
A gold-standard test would have to be based on data from pure virions of HIV obtained from an HIV-positive individual.
These mutations in the viral genome inhibit normal expression of viral genes and render the target cell incapable of producing progeny virions and facilitating a productive infection (8).
Bevirimat targets the Gag structural polyprotein, the fundamental structural protein of HIV, which undergoes a series of complex interactions both with itself and with other cellular and viral factors to achieve the assembly of infectious virions [13].
Transmission electron microscopy of thin sections of the liver revealed icosahedral virions in paracrystalline arrays within the nuclei of affected hepatocytes (data not shown).