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 (prō′vī′rəs, prō-vī′-)
n. pl. pro·vi·rus·es
A form of a virus that allows it to be integrated into the genome of a host cell and to replicate in concert with the cell's genetic material without causing cell lysis.

pro′vi′ral (-rəl) adj.


(Pathology) the inactive form of a virus in a host cell


(ˈproʊˌvaɪ rəs, proʊˈvaɪ-)

n., pl. -rus•es.
a viral form that is incorporated into the genetic material of a host cell.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.provirus - cDNA copy of the RNA genome of a retrovirus; the genetic material of a virus as incorporated into and able to replicate with the genome of a host cell
cDNA, complementary DNA - single-stranded DNA that is complementary to messenger RNA or DNA that has been synthesized from messenger RNA by reverse transcriptase
References in periodicals archive ?
Equine infectious anemia virus gag p9 function in early steps of virus infection and provirus production.
Here, we demonstrate the feasibility and efficiency of excising the HIV-1 provirus in three different animal models," the researchers wrote, noting that it was a "significant step toward human clinical trials.
When the provirus receives the signals to be active, they use host cell RNA polymerase to make messenger RNA23.
DELTA]env provirus encoding the bacterial CAT gene was complemented by the envelope glycoprotein from the HXBc2 laboratory-adapted T-tropic virus.
Transcripcion: El provirus integrado puede permanecer latente por tiempo indefinido o puede forzar la actividad celular a producir RNA viral, el cual puede ser usado para la produccion de proteinas virales, las que con el genoma del virus ensamblan nuevos viriones.
T cells is the main reservoir of HTLV-1 provirus in HAC and HAM/TSP individuals, showing that these cells are in vivo preferential targets of HTLV-1.
Systematic Identification of Factors for Provirus Silencing in Embryonic Stem Cells," Cell, 2015; DOI: 10.
The research findings described in this media release can be found in the Cell Journal, under the title, "Systematic Identification of Factors for Provirus Silencing in Embryonic Stem Cells" by Bin Xia Yang1,22, Chadi A.
Many tumors induced by the mouse mammary tumor virus contain a provirus integrated in the same region of the host genome.
Embryos, semen and uterine fluids are the source of BLV provirus.
because glutathione and selenium depletion leads to enhanced activation of oxidatively activated transcription factors such as NF-kappaB and Sp1 that enhance the transcription of the HIV provirus gene in infected leukocytes) (Christophersen et al 2012).