From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Mimivirus svg.svg
Virus classification
Group I (dsDNA)

Acanthamoeba polyphaga mimivirus

Mimivirus is an extra-large virus. It was discovered in 1992.

APMV was found accidentally inside the amoeba Acanthamoeba polyphaga.[1] The virus was seen in a gram stain and mistakenly thought to be a gram-positive bacterium.

It is either a viral genus with a single species, Acanthamoeba polyphaga mimivirus (APMV), or it is a group of phylogenetically-related large viruses (MimiN).[2]

In speech, APMV is usually referred to as "mimivirus". Until October 2011, when an even larger virus Megavirus chilensis was described, it was the largest (capsid diameter) of all known viruses.[3]

Mimivirus has a large and complex genome compared with most other viruses. Mimivirus, short for "mimicking microbe", is so called for its large size and Gram-staining properties.[4]

References[change | change source]

  1. Richard Birtles; TJ Rowbotham; C Storey; TJ Marrie; Didier Raoult (29 Mar 1997). "Chlamydia-like obligate parasite of free-living amoebae". The Lancet 349: 925–926. doi:10.1016/S0140-6736(05)62701-8. PMID 9093261. 
  2. Ghedin E. & Claverie J. 2005. Mimivirus relatives in the Sargasso sea. Virology 2: 62. [1]
  3. "World's biggest virus found in sea off Chile". London: Telegraph UK. 11 October 2011. Retrieved 11 November 2011.
  4. Wessner, D R (2010). "Discovery of the giant mimivirus". Nature Education 3 (9): 61. http://www.nature.com/scitable/topicpage/discovery-of-the-giant-mimivirus-14402410. Retrieved 2012-01-07.