Coordinative unsaturated CuI entities are crucial intermediates governing cell internalization of copper. A combined experimental ESI-MS and DFT study.,Metallomics

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Coordinative unsaturated CuI entities are crucial intermediates governing cell internalization of copper. A combined experimental ESI-MS and DFT study.
Metallomics ( IF 2.9 ) Pub Date : 2019-10-23 , DOI: 10.1039/c9mt00236g
Silvia Carlotto ₁ , Arkadiusz Bonna ₂ , Karolina Bossak-Ahmad ₃ , Wojciech Bal ₃ , Marina Porchia ₄ , Maurizio Casarin ₁ , Francesco Tisato ₄

Affiliation

Model peptides relevant to hCtr1 transchelate CuI from the anti-tumour [CuI(PTA)₄]⁺ complex before metal internalization into tumor cells. ESI(+)MS experiments corroborated by DFT calculations indicate that tetracoordinated-Cu^II and linear-Cu^I arrangements of in situ generated copper-peptide products play a crucial role in promoting the transfer of copper from the terminal MDH portion into adjacent HSH peptide sequence.

中文翻译：

配位不饱和CuI实体是控制铜单元内部化的关键中间体。结合实验性ESI-MS和DFT研究。

在金属内化进入肿瘤细胞之前，从抗肿瘤[CuI（PTA）₄ ] ⁺复合物中与hCtr1转螯合CuI相关的模型肽。DFT计算证实的ESI（+）MS实验表明，原位生成的铜肽产物的四配位Cu ^II和线性Cu ^I排列在促进铜从MDH末端部分转移到相邻的HSH肽序列中起着至关重要的作用。

更新日期：2019-10-23

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