Arenaviridae

Arenaviridae
A family of over 15 RNA viruses, many of which are natural parasites of rodents, that includes lymphocytic choriomeningitis virus, Lassa virus, and the Tacaribe virus complex. The virions are 50–300 nm (average 100 nm) in diameter, enveloped, ether-sensitive, and contain 2 single-stranded RNA molecules (molecular weight 3–5 × 106); they also contain electron-dense, RNA-containing granules (20 to 30 nm in diameter) that resemble ribosomes, with an electron-microscopic appearance of sandiness. [L. arena (harena), sand]

* * *

Are·na·vi·ri·dae .ar-ə-nə-'vir-ə-.dē, ə-.rē- n pl a family of single-stranded RNA viruses that have a grainy appearance due to the presence of ribosomes in the virion and that are usu. transmitted to humans by infected wild rodents through contamination of food and personal items or by inhalation of the airborne virus

* * *

Are·na·vi·ri·dae (ə-re″nə-virґĭ-de) the arenaviruses: a family of RNA viruses having a pleomorphic virion 50–300 nm in diameter consisting of a lipid bilayer envelope, with large peplomers, surrounding a coiled nucleocapsid with two members and a variable number of ribosomes. The genome consists of two circular molecules of ambisense single-stranded RNA, designated L (MW 1.1Ч106) and S (MW 2.2–2.8Ч106) (size of total genome 10–14 kb). Viruses contain three major polypeptides, including a transcriptase, and are ultraviolet- and gamma radiation–sensitive. Replication and assembly occur in the cytoplasm; virions are released by budding through the plasma membrane. Host ranges are narrow. There is a single genus, Arenavirus.

Medical dictionary. 2011.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Arenaviridae — Saltar a navegación, búsqueda ? Arenaviridae Viriones] del virus Lassa …   Wikipedia Español

  • Arenaviridae — См. Аренавирусы (Источник: «Словарь терминов микробиологии») …   Словарь микробиологии

  • arenaviridae — familia de virus RNA patógenos para los vertebrados. Entre otros, se incluyen en virus Tacaribe, Junin y Machupo. Se transmiten a través de mosquitos o ácaros y son responsables de enfermedades como la coriomeningitis, fiebre de Lassa y otras… …   Diccionario médico

  • Arenaviridae — Familie Arenaviridae Knospung des Lassa Virus Systematik Reich: Viren …   Deutsch Wikipedia

  • Arenaviridae — Arenaviridae …   Wikipédia en Français

  • Arenaviridae — Family of ssRNA viruses including Lassa virus, Lymphocytic choriomeningitis virus, and the Tacaribe group of viruses; not all require arthropods for transmission, despite their inclusion in the arbovirus group …   Dictionary of molecular biology

  • Arenaviridae — noun a family of arborviruses carried by arthropods • Hypernyms: ↑arbovirus, ↑arborvirus • Member Holonyms: ↑family • Member Meronyms: ↑arenavirus, ↑Junin virus, ↑Lassa virus, ↑ …   Useful english dictionary

  • Arenaviren — Familie Arenaviridae Knospung des Lassa Virus Systematik Reich: Viren Ordnung: nicht klassifiziert …   Deutsch Wikipedia

  • Arenavirus — Familie Arenaviridae Knospung des Lassa Virus Systematik Reich: Viren Ordnung: nicht klassifiziert …   Deutsch Wikipedia

  • Virus — A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity or with… …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”