virion

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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 ?
Particles were observed to be in clusters (up to 10 virions in each cluster) embedded in skin tissue and as single virions (Figure 2, panels A, B).
Storage at 25AdegC or 37AdegC, however, had the greatest impact on phage titer as few infectious virions were recovered from these phage suspensions after 12 months.
lnfection begins when larvae consume foliage contaminated with viral occlusion bodies that break down in the insect midgut and release occlusion derived virions that infect midgut epithelial cells.
AltMV virions represent flexible filamentous particles with helical symmetry made up of one type of coat protein (CP) subunits.
These G2129C and A2131Y changes could be important for the intracellular retention of the HBV virion. Supporting evidence for this hypothesis comes from the observations of other workers that concomitant changes of Glu77Gln with Pro79Gln, Ala80Pro, and Ser181Pro in the core protein appear to promote nuclear retention of HBcAg [24] and that Glu77Ala in silico destabilises the core residue-surface antigen interface which is essential for the secretion of virions after assembly [26].
In HIV, mathematical models have provided a framework for understanding the viral dynamics and have been used in the optimal allocation of the various interventions against the HIV virions [2-4].
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.
Cryoelectron microscopy studies indicate that the mature ZIKV virion is very similar in structure to the mature virions of DENV and WNV.
The virus then multiplies inside the cells that burst releasing more mature virions. This in turn triggers the thymus to produce more [CD4.sup.+] T-cells.
The Nef favors the intrinsic infectivity of HIV virions necessary for the full deployment of virus infectivity.