Download MendeleySolution structure of Z-form DNA bound to a curaxin ligand CBL0137.
Liu, F., Wang, S., Xu, Y.(2026) Nucleic Acids Res 54
- PubMed: 41665010
- DOI: https://doi.org/10.1093/nar/gkag104
- Primary Citation of Related Structures:
9VZW - PubMed Abstract:
Z-DNA is known to be a left-handed alternative form of DNA and has important biological roles in cancer and other genetic diseases. In a recent study, we discovered CBL0137, a curaxin ligand, to enhance cancer immunotherapy by inducing Z-DNA formation and activating the Z-DNA-binding protein ZBP1. However, the structural information on binding complexes between Z-DNA and CBL0137 ligand has not reported to date. Here we present the first high-resolution structure of the complex between a Z-DNA and a curaxin ligand CBL0137. This compound is observed to interact with the Z-DNA through π-stacking and zig-zag localization. Furthermore, we directly observe the complex in living human cells using in-cell 19F NMR for the first time. This structural information provides a platform for the design of topology-specific Z-DNA-targeting compounds and is valuable for the development of new potent anticancer drugs.
- Division of Chemistry, Department of Medical Sciences, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan.
Organizational Affiliation:
