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The Tn3 transposon is a 4957 base pair mobile genetic element, found in prokaryotes. It encodes three proteins: * β-lactamase, an enzyme that confers resistance to β-lactam antibiotics (and is encoded by the gene Bla). * Tn3 transposase (encoded by gene tnpA) * Tn3 resolvase (encoded by gene tnpR) Initially discovered as a repressor of transposase, resolvase also plays a role in facilitating Tn3 replication (Sherratt 1989). The transposon is flanked by a pair of 38bp inverted repeats. ==Mechanism of replication== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tn3 transposon」の詳細全文を読む スポンサード リンク
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