2005年4月
A VPE family supporting various vacuolar functions in plants
Physiologia Plantarum
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- 巻
- 123
- 号
- 4
- 開始ページ
- 369
- 終了ページ
- 375
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1111/j.1399-3054.2005.00464.x
Vacuolar processing enzyme (VPE) is a cysteine protease that has substrate specificity toward Asn and Asp residues, and found in various eukaryotic organisms including higher plants and mammals. Plant VPEs are separated into three subfamilies: seed-type, vegetative-type and uncharacterized-type. VPE was originally identified as a protease responsible for the maturation of seed storage proteins, and recent research has shown that it is a key protease responsible for the maturation of various vacuolar proteins not only in maturating cotyledons, but also in vegetative tissues. Thus, the VPE-mediated processing system is important for various vacuolar functions in the plant. Vegetative-type VPEs are expressed during senescence or pathogen-induced hypersensitive response. A VPE-deficiency abolished programmed cell death during hypersensitive response in tobacco leaves after TMV infection. This suggests that vegetative-type VPEs are involved in vacuolar-organized programmed cell death. Copyright © Physiologia Planlarum 2005.
- リンク情報
- ID情報
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- DOI : 10.1111/j.1399-3054.2005.00464.x
- ISSN : 0031-9317
- SCOPUS ID : 17444426117