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Bacteriophage Mu
Bacteriophage Mu, also known as mu phage or mu bacteriophage, is a mulikevirus (the first of its kind to be identified) of the family Myoviridae which has been shown to cause genetic transposition. It is of particular importance as its discovery in ''E. coli'' by Larry Taylor was among the first observation of insertion elements in a genome. This discovery opened up the world to an investigation of transposable elements and their effects on a wide variety of organisms. While mu was specifically involved in several distinct areas of research (Including ''E. coli'', maize, and HIV), the wider implications of transposition and insertion transformed the entire field of genetics.〔Harshey, R. (2012). The Mu story: How a maverick phage moved the field forward. Mobile DNA, (3), 21-21.〕
==Discovery==
Mu phage was first discovered Larry Taylor at UC Berkeley in the late 1950s. His work continued at Brookhaven National Laboratory, where he first observed the mutagenic properties of Mu; several colonies of Hfr e. coli which had been lysogenized with Mu seemed to have a tendency to develop new nutritional markers. With further investigation, he was able to link the presence of these markers to the physical binding of Mu at a certain loci. He likened the observed genetic alteration to the ‘controlling elements’ in maize, and named the phage ‘Mu’, for mutation.〔Taylor AL: Bacteriophage-induced mutations in E. coli.
Proc Natl Acad Sci U S A 1963, 50:1043-1051.〕 This, however, was only the beginning. Over the next sixty years, the complexities of the phage were fleshed out by numerous researchers and labs, resulting in a far deeper understanding of mobile DNA and the mechanisms underlying transposable elements.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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