Noxa, a BH3-Only Member of the Bcl-2 Family and Candidate Mediator of p53-Induced Apoptosis
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- Eri Oda
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- Rieko Ohki
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- Hideki Murasawa
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- Jiro Nemoto
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- Tsukasa Shibue
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- Toshiharu Yamashita
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University School of Medicine, S1 W17, Chuo-Ku, Sapporo 060-8543, Japan.
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- Takashi Tokino
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University School of Medicine, S1 W17, Chuo-Ku, Sapporo 060-8543, Japan.
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- Tadatsugu Taniguchi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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- † Nobuyuki Tanaka
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
抄録
<jats:p> A critical function of tumor suppressor p53 is the induction of apoptosis in cells exposed to noxious stresses. We report a previously unidentified pro-apoptotic gene, <jats:italic>Noxa</jats:italic> . Expression of Noxa induction in primary mouse cells exposed to x-ray irradiation was dependent on p53. <jats:italic>Noxa</jats:italic> encodes a Bcl-2 homology 3 (BH3)–only member of the Bcl-2 family of proteins; this member contains the BH3 region but not other BH domains. When ectopically expressed, Noxa underwent BH3 motif–dependent localization to mitochondria and interacted with anti-apoptotic Bcl-2 family members, resulting in the activation of caspase-9. We also demonstrate that blocking the endogenous Noxa induction results in the suppression of apoptosis. Noxa may thus represent a mediator of p53-dependent apoptosis. </jats:p>
収録刊行物
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- Science
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Science 288 (5468), 1053-1058, 2000-05-12
American Association for the Advancement of Science (AAAS)
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詳細情報 詳細情報について
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- CRID
- 1363388843889955328
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- NII論文ID
- 80011944766
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- ISSN
- 10959203
- 00368075
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