Volume 43, Issue 42 pp. 5643-5645
Communication

Design and Synthesis of Photochemically Controllable Caspase-3

Masayuki Endo Dr.

Masayuki Endo Dr.

Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567–0047, Japan, Fax: (+81) 6-6879-8499

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Koji Nakayama

Koji Nakayama

Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567–0047, Japan, Fax: (+81) 6-6879-8499

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Yuka Kaida

Yuka Kaida

Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567–0047, Japan, Fax: (+81) 6-6879-8499

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Tetsuro Majima Dr.

Tetsuro Majima Dr.

Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567–0047, Japan, Fax: (+81) 6-6879-8499

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First published: 20 October 2004
Citations: 35

We thank Dr. Yoshihide Tsujimoto (Osaka University Medical School) for providing cDNA of human caspase-3. This work was supported by a Grant-in-Aid for Scientific Research on Priority Area (417), 21st Century COE Research, and from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of the Japanese Government.

Graphical Abstract

The selective cleavage achieved by activated caspase-8 has been mimicked by using a photofunctionalized caspase-3 having 2-nitrophenylglycine (Npg) at a specific position of the peptide chain (see picture). The study shows that the activity of caspase-3 has been clearly expressed by photoirradiation and that autocleavage of caspase-3 has been suppressed by the site-selective incorporation of the Npg residue.

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