Novel non-ATP competitive small molecules targeting the CK2 α/β interface.

Novel non-ATP competitive small molecules targeting the CK2 α/β interface.
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DOI:
10.1016/j.bmc.2018.05.011
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发表时间:
2018-07-15
影响因子:
3.5
通讯作者:
Spring DR
Spring DR
中科院分区:
医学3区
文献类型:
--
作者:
Brear P;North A;Iegre J;Hadje Georgiou K;Lubin A;Carro L;Green W;Sore HF;Hyvönen M;Spring DR

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CK2水平升高在许多癌症中普遍存在。结合CK2在许多细胞信号通路中发挥的关键作用,这使其成为下调以对抗肿瘤生长的主要目标。在此,我们报道了一种基于片段的方法来抑制全酶的α-β界面上CK2α和CK2β之间的相互作用。CAM187的IC50值为44 μM,分子量仅为257 gmol−1,被认为是最有前途的化合物。重要的是,当与CK2α共结晶时,铅片段仅在界面结合,而在蛋白质的ATP结合位点未观察到。本研究中发现的片段样分子代表了CK2抑制的独特支架,并为进一步优化留下了空间。
Increased CK2 levels are prevalent in many cancers. Combined with the critical role CK2 plays in many cell-signaling pathways, this makes it a prime target for down regulation to fight tumour growth. Herein, we report a fragment-based approach to inhibiting the interaction between CK2α and CK2β at the α-β interface of the holoenzyme. A fragment, CAM187, with an IC50 of 44 μM and a molecular weight of only 257 gmol−1 has been identified as the most promising compound. Importantly, the lead fragment only bound at the interface and was not observed in the ATP binding site of the protein when co-crystallised with CK2α. The fragment-like molecules discovered in this study represent unique scaffolds to CK2 inhibition and leave room for further optimisation.
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