Solution Structure of a G-quadruplex Bound to the Bisquinolinium Compound Phen-DC3.
Chung, W.J., Heddi, B., Hamon, F., Teulade-Fichou, M.P., Phan, A.T.(2014) Angew Chem Int Ed Engl 53: 999-1002
- PubMed: 24356977 
- DOI: https://doi.org/10.1002/anie.201308063
- Primary Citation of Related Structures:  
2MGN - PubMed Abstract: 
Phen-DC3 is a highly promising compound that specifically targets G-quadruplexes, with potent biological effects observed in vivo. We used NMR spectroscopy to solve the structure of the complex formed between Phen-DC3 and an intramolecular G-quadruplex derived from the c-myc promoter. Structural information revealed that Phen-DC3 interacts with the quadruplex through extensive π-stacking with guanine bases of the top G-tetrad. On the basis of our structure, modifications are proposed for the development of this compound for selective targeting of a specific G-quadruplex conformation.
Organizational Affiliation: 
School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore).