Download MendeleyRecognition of the DNA minor groove by thiazotropsin analogues.
Alniss, H.Y., Salvia, M.V., Sadikov, M., Golovchenko, I., Anthony, N.G., Khalaf, A.I., MacKay, S.P., Suckling, C.J., Parkinson, J.A.(2014) Chembiochem 15: 1978-1990
- PubMed: 25045155
- DOI: https://doi.org/10.1002/cbic.201402202
- Primary Citation of Related Structures:
2MNB, 2MND, 2MNE, 2MNF - PubMed Abstract:
Solution-phase self-association characteristics and DNA molecular-recognition properties are reported for three close analogues of minor-groove-binding ligands from the thiazotropsin class of lexitropsin molecules; they incorporate isopropyl thiazole as a lipophilic building block. Thiazotropsin B (AcImPy(iPr) ThDp) shows similar self-assembly characteristics to thiazotropsin A (FoPyPy(iPr) ThDp), although it is engineered, by incorporation of imidazole in place of N-methyl pyrrole, to swap its DNA recognition target from 5'-ACTAGT-3' to 5'-ACGCGT-3'. Replacement of the formamide head group in thiazotropsin A by nicotinamide in AIK-18/51 results in a measureable difference in solution-phase self-assembly character and substantially enhanced DNA association characteristics. The structures and associated thermodynamic parameters of self-assembled ligand aggregates and their complexes with their respective DNA targets are considered in the context of cluster targeting of DNA by minor-groove complexes.
Organizational Affiliation:
Department of Pharmacy, An-Najah National University, University Street, Nablus (Palestine); Present address: Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 2J7 (Canada).
