ОБНГенетика Russian Journal of Genetics

  • ISSN (Print) 0016-6758
  • ISSN (Online) 3034-5103

АНТИРЕСТРИКТАЗЫ: СТРУКТУРЫ, ФУНКЦИИ И ПЕРСПЕКТИВЫ ПРИМЕНЕНИЯ

Код статьи
S3034510325090033-1
DOI
10.7868/S3034510325090033
Тип публикации
Статья
Статус публикации
Опубликовано
Авторы
Том/ Выпуск
Том 61 / Номер выпуска 9
Страницы
40-46
Аннотация
Системы рестрикции-модификации (RM) играют важную роль в защите прокариот от проникновения чужеродной ДНК. Гены белков антирестрикции, таких как ArdA и ArdB, зачастую являются первыми генами, входящими в клетку при заражении. Недавние исследования показали, что ДНК-мимикрирующие белки ArdA обладают специфичностью по отношению к RM-системам, а значит могут имитировать вполне определенные последовательности ДНК. Более того, такая специфичность может быть реализована с помощью недавно открытых очень маленьких ДНК-мимикрирующих белков sArdA. Это позволяет сделать выводы о перспективности применения таких ДНК-мимикрирующих "почти пептидов" для специфичного взаимодействия с ДНК-связывающими белками в целях точной регуляции внутриклеточных процессов. Другой класс антирестрикционных белков ArdB, напротив, по-видимому представляет собой универсальный ДНК-связывающий агент, стабильно ингибирующий рестрикционную активность всех известных RM-систем I-типа, а также CRISPR/Cas3, что может быть применено для повышения эффективности трансформации для трудно трансформируемых штаммов.
Ключевые слова
рестрикция антирестрикция ArdA ArdB EcoKI
Дата публикации
11.03.2026
Год выхода
2026
Всего подписок
0
Всего просмотров
16

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