期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 69, 期 9, 页码 1733-1742出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.69.1733
关键词
proteasome inhibitor; tyropeptin A derivative
Tyropeptin A, a potent proteasome inhibitor, was isolated from the culture broth of Kitasatospora sp. MK993-dF2. We synthesized the derivatives of tyropeptin A to enhance its inhibitory potency. Among the synthesized derivatives, the most potent compound, TP-104, exhibited a 20-fold inhibitory potency enhancement for chymotrypsin-like activity of 20S proteasome compared to tyropeptin A. Additionally, TP-110 specifically inhibited the chymotrypsin-like activity, but did not inhibit the post-glutamyl-peptide hydrolyzing (PGPH) and the trypsin-like activities of 20S proteasome. In vitro TP-110 strongly inhibited the growth of various cell lines.
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