Bractoppin 是一种BRCA1 (t)BRCT domain识别磷酸肽的选择性抑制剂，IC50为 74 nM。它优先抑制 BRCA1 -tBRCT 依赖的 DNA 损伤。它减少 BRCA1 对 DNA 断裂片段的招募，进而抑制损伤诱导的 G2 期阻滞和重组酶 RAD51 的组装。

Bractoppin is a drug-like inhibitor of phosphopeptide recognition by the human BRCA1 tandem (t)BRCT domain (IC50 = 0.074 μM), which selectively inhibits substrate binding with nanomolar potency in vitro. Structure-activity exploration suggests that Bractoppin engages BRCA1 tBRCT residues recognizing pSer in the consensus motif, pSer-Pro-Thr-Phe, plus an abutting hydrophobic pocket that is distinct in structurally related BRCT domains, conferring selectivity.

2290527-07-8

C25H23FN4O

414.484

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