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Tc3 transposase Tc3 is transposase with a specific DNA-binding domain which contains three alpha-helices, two of which form a helix-turn-helix motif which makes four base-specific contacts with the major groove. The N-terminus makes contacts with the minor groove. There is a base specific recognition between Tc3 and the transposon DNA. The DNA binding domain forms a dimer in which each monomer binds a separate transposon end. This implicates that the dimer has a role in synapsis and is necessary for the simultaneous cleavage of both transposon termini.
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PubMed References
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Jiyao W et al.(2023). "The conserved domain database in 2023.",