FIELD: biochemistry.
SUBSTANCE: invention relates to the field of biochemistry, in particular to the purified polypeptide PtIP-83, which has insecticidal activity against the corn earthworm (Helicoverpa zea). Also disclosed is a recombinant polynucleotide encoding the specified protein; a transgenic plant and a transgenic cell containing the specified polynucleotide; a DNA construct containing the specified polynucleotide; a composition containing the specified polypeptide; a fusion protein containing the specified polypeptide. Methods of reducing the population of the corn earthworm (Helicoverpa zea), suppressing the growth or destruction of the corn earthworm (Helicoverpa zea) with the help of this polypeptide are disclosed; the use of the polypeptide PtIP-83.
EFFECT: invention has ability to effectively control the corn earthworm (Helicoverpa zea).
30 cl, 14 ex, 25 tbl, 5 dwg
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