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Plant phytaspases and animal caspases: structurally unrelated death proteases with a common role and specificityстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Chichkova Nina V., Tuzhikov Alexander I., Taliansky Michael, Vartapetian Andrey B.
- Журнал: Physiologia Plantarum
- Том: 145
- Номер: 1
- Год издания: 2012
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- Первая страница: 77
- Последняя страница: 84
- DOI: 10.1111/j.1399-3054.2011.01560.x
- Аннотация: Proteases with an aspartate cleavage specificity are known to contribute to programmed cell death (PCD) in animals and plants. In animal cells this proteolytic activity belongs to caspases, a well-characterized family of cysteine-dependent death proteases. Plants, however, lack caspase homologs and thus the origin of this type of proteolytic activity in planta was poorly understood. Here, we review recent data demonstrating that a plant serine-dependent protease, phytaspase, shares cleavage specificity and a role in PCD analogous to that of caspases. However, unlike caspases, regulation of phytaspase-mediated cleavage of intracellular target proteins appears to be attained not at the level of proenzyme processing/activation, which occurs, in the case of phytaspase, autocatalytically and constitutively. Rather, the mature phytaspase is excluded from healthy cells into the apoplast and is allowed to re-enter cells upon the induction of PCD. Thus, PCD-related proteases in animals and plants display both common features and important distinctions.
- Добавил в систему: Вартапетян Андрей Борисович