abstract |
FIELD: biotechnologies. n SUBSTANCE: invention represents an extracted polypeptide, including a sulfonylurea-reactive repressor, which is specifically bound with a polynucleotide, containing an operator sequence, where binding is adjusted by the compound of sulfonylurea and where the specified polypeptide contains an amino acid sequence, which is at least by 90% identical to the sequence SEQ ID NO:1233. The invention also relates to a polynucleotide that codes polypeptide, and also to a cell transformed by polynucleotide. Also the method is proposed to regulate transcription of target polynucleotide in a cell using the proposed polynucleotide. n EFFECT: improved characteristics of a compound. n 31 cl, 29 tbl, 7 ex, 11 dwg |