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 approach from the Northwestern Medicine scientists allowed the behaviour of individual virions, infectious particles, to be connected to infectivity.
MEDI8897 is a highly potent monoclonal antibody (mAb) that neutralizes RSV by binding the RSV fusion (F) protein expressed on virions and infected cells; it has been engineered to have a long half-life so that only one dose would be needed for the entire RSV season.
According to the collaboration, both firms will jointly develop and commercialise MEDI8897, a highly potent monoclonal antibody that neutralises respiratory syncytial virus by binding the respiratory syncytial virus fusion protein expressed on virions and infected cells.
Under conditions where the concentration of antibodies is low, antibody avidity is low, and/or antibodies target only nonneutralizing epitopes, antibody bound virions remain infectious, and their attachment to cells expressing immunoglobulin receptors (FcRs) may actually be enhanced; furthermore, signals via the FcR may render cells more susceptible to infection and enhance viral replication.
Coming full circle, we will explore the mechanisms used by VACV to modulate cellular degradation such that ubiquitinated viral core proteins are packaged into newly forming virions without being degraded.
Not all prM proteins are cleaved during egress, because virions containing at least some uncleaved prM protein are found in bulk virus populations and are infectious (14,15).
The large round virions are known as Dane particles.
TEM observations showed that the derivative virions of the inclusion bodies were rod-shaped and scattered within the inclusion bodies with an irregular arrangement.
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.
So, recently it has been described that in the infected organism HCV virions circulate in different forms: connected with lipoproteins, free of lipoproteins, surrounded with a cover, and without cover.