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Yang Z, Chen Y, Li G, Tian Z, Zhao L, Wu X, Ma Q, Liu M, Yang P. Supramolecular Recognition of Three Way Junction DNA by a Cationic Calix[3]carbazole. Chemistry 2018; 24:6087-6093. [PMID: 29315943 DOI: 10.1002/chem.201705564] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 12/31/2022]
Abstract
DNA three-way junctions (TWJ-DNA) are intermediate structures in DNA replication and/or recombination. They play very important roles in biological processes, but more subtle functions are still unknown due partially to the lack of a fluorescent ligand. In this study, a cationic calix[3]carbazole (2) has been synthesized and its properties of interacting with TWJ-DNA have been evaluated by UV/Vis and fluorescence spectroscopy, circular dichroism (CD), gel electrophoresis, and 1 H NMR studies. The results show that 2 binds to the central hydrophobic cavity of TWJ-DNA. Moreover, it could selectively bind to TWJ-DNA over duplex and quadruplex DNA. Furthermore, 2 possesses the capability of serving as the TWJ-DNA probe as its trap-II excimer emission is turned on by TWJ-DNA.
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Affiliation(s)
- Zhaozheng Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Yan Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Gang Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University), Ministry of Education, Shenyang, 110016, P. R. China
| | - Zhangmin Tian
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Liang Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Xi Wu
- Shenzhen Institute for Drug Control, Shenzhen, 518057, P. R. China
| | - Qi Ma
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University), Ministry of Education, Shenyang, 110016, P. R. China
| | - Mingzhe Liu
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University), Ministry of Education, Shenyang, 110016, P. R. China
| | - Peng Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
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