Biopolym. Cell. 1987; 3(2):77-82.
Структура та функції біополімерів
Ядерна ДНК-топоізомераза зародків кукурудзи
1Карпенчук К. Г., 1Руденко Г. Н.
- Інститут ботаніки ім. М. Г. Холодного АН УРСР
Київ, СРСР
Abstract
З ядерного екстракту зрілих зародків Zea mays виділено і частково очищено АТР-незалежну ДНК-топоізомеразу, імовірно, I типу. Релаксацію негативно суперспіралізованої ДНК плазміди pBR322 не інгібують ЕДТА, новобіоцин і налідиксова кислота, активують іони магнію і поліамін (спермідин і кадаверин), пригнічують SH-специфічні реагенти та ауринтрикарбонова кислота.
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