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ID: ALA1150321

Journal: Bioorg Med Chem Lett

Title: Demonstration of direct binding of cIAP1 degradation-promoting bestatin analogs to BIR3 domain: Synthesis and application of fluorescent bestatin ester analogs.

Authors: Sato S, Aoyama H, Miyachi H, Naito M, Hashimoto Y.

Abstract: Overexpression of cIAP1 correlates with resistance to radiotherapy and chemotherapy in various cancers. Recently, we reported that a class of bestatin ester analogs represented by MeBS (2) destabilized and promoted the degradation of cIAP1 through auto-ubiquitination, and thereby sensitized cancer cells to apoptosis. Herein, we present chemical evidence that bestatin ester analogs directly interact with the cIAP1-BIR3 domain by means of fluorescence polarization assay and photoaffinity labeling assay using fluorescent probes.

CiteXplore: 18448338

DOI: 10.1016/j.bmcl.2008.04.031