A transposase encoded by the Tol2 element; a polynucleotide encoding the same; a method of modifying the gene structure of a cell (preferably a vertebrate cell) by using the above protein; a method of modifying the function of a cell by modifying the gene structure thereof; and a cell having been modified in function by these methods. Also the structure of a cis element necessary in gene transfer is clarified and presented.

 
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< TRANSGENIC NON-HUMAN MAMMAL WITH AN ONCOGENIC MUTANT OF THE c-Raf GENE 1

< CHRYSANTHEMUM PLANT NAMED 'MOZA THREE ANGA'

> Transgenic aves producing human polyclonal antibodies

> Verbena plant named 'Lan Redtwo'

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