The polyadenosine-diphosphate-ribose polymerase 14 (PARP14) has been implicated in DNA damage response pathways for homologous recombination. PARP14 contains three (ADP ribose binding) macrodomains (MD) whose exact contribution to overall PARP14 function in pathology remains unclear. A medium throughput screen led to the identification of N-(2(-9H-carbazol-1-yl)phenyl)acetamide (GeA-69, 1) as a novel allosteric PARP14 MD2 (second MD of PARP14) inhibitor. We herein report medicinal chemistry around this novel chemotype to afford a sub-micromolar PARP14 MD2 inhibitor. This chemical series provides a novel starting point for further development of PARP14 chemical probes.

中文翻译：

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发现一种新型的变构抑制剂骨架，用于多腺苷二磷酸核糖聚合酶14（PARP14）大结构域2。

聚腺苷二磷酸核糖聚合酶14（PARP14）已牵涉到DNA损伤反应途径中的同源重组。PARP14包含三个（ADP核糖结合）宏域（MD），尚不清楚其对病理学中整个PARP14功能的确切贡献。中等通量筛选导致鉴定出N-（2（-9H-咔唑-1-基）苯基）乙酰胺（GeA-69，1）作为新型变构PARP14 MD2（PARP14的第二个MD）抑制剂。我们在此报告了围绕这种新型化学型的药物化学，以提供亚微摩尔的PARP14 MD2抑制剂。该化学系列为进一步开发PARP14化学探针提供了新的起点。