Isolation and characterization of Tn7 transposase gain-of-function mutants: a model for transposase activation
نویسندگان
چکیده
منابع مشابه
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Tn5 transposase (Tnp) is a 53.3-kDa protein that is encoded by and facilitates movement of transposon Tn5. Tnp monomers contain a single active site that is responsible for catalyzing a series of four DNA breaking/joining reactions at one transposon end. Based on primary sequence homology and protein structural information, we designed and constructed a series of plasmids that encode for Tnps c...
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The carboxy-terminal portion of TnsC activates the Tn7 transposase through a specific interaction with TnsA.
Tn7 transposition requires the assembly of a nucleoprotein complex containing four self-encoded proteins, transposon ends, and target DNA. Within this complex, TnsC, the molecular switch that regulates transposition, and TnsA, one part of the transposase, interact directly. Here, we demonstrate that residues 504-555 of TnsC are responsible for TnsA/TnsC interaction. The crystal structure of the...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 2000
ISSN: 1460-2075
DOI: 10.1093/emboj/19.13.3446