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Updated: Aug 20, 2026

Measuring Composition of CD95 Death-Inducing Signaling Complex and Processing of Procaspase-8 in this Complex
Published on: August 2, 2021
Regulation of procaspase-2 by glucocorticoid modulatory element-binding protein 1 through the interaction with
Kazuhiro Tsuruma1, Tadashi Nakagawa, Hiromi Shirakura
1Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, N12W6, Sapporo 060-0812, Japan.
Abstract:
Caspases are the primary executioners of apoptosis. Although procaspases believe to exist as inactive forms in cells, the detailed regulatory system remains unclear. Here we show that glucocorticoid modulatory element-binding protein 1 (GMEB1) is capable of binding to the prodomain of caspase-2. We found that this molecule inhibits the autoproteolytic activation of procaspase-2 by oligomerization on a chemical compound-dependent system. These findings indicated that GMEB1 might be an endogenous inhibitory protein that selectively interacts with prodomain of caspase-2 to disrupt the autoactivation.
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