{"doi":"10.3390/ijms23158547","page":"8547","publication_status":"published","issue":"15","keyword":["Inorganic Chemistry","Organic Chemistry","Physical and Theoretical Chemistry","Computer Science Applications","Spectroscopy","Molecular Biology","General Medicine","Catalysis"],"date_created":"2022-08-08T06:39:20Z","abstract":[{"text":"<jats:p>Guanidinium (Gdm) undergoes interactions with both hydrophilic and hydrophobic groups and, thus, is a highly potent denaturant of biomolecular structure. However, our molecular understanding of the interaction of Gdm with proteins and DNA is still rather limited. Here, we investigated the denaturation of DNA origami nanostructures by three Gdm salts, i.e., guanidinium chloride (GdmCl), guanidinium sulfate (Gdm2SO4), and guanidinium thiocyanate (GdmSCN), at different temperatures and in dependence of incubation time. Using DNA origami nanostructures as sensors that translate small molecular transitions into nanostructural changes, the denaturing effects of the Gdm salts were directly visualized by atomic force microscopy. GdmSCN was the most potent DNA denaturant, which caused complete DNA origami denaturation at 50 °C already at a concentration of 2 M. Under such harsh conditions, denaturation occurred within the first 15 min of Gdm exposure, whereas much slower kinetics were observed for the more weakly denaturing salt Gdm2SO4 at 25 °C. Lastly, we observed a novel non-monotonous temperature dependence of DNA origami denaturation in Gdm2SO4 with the fraction of intact nanostructures having an intermediate minimum at about 40 °C. Our results, thus, provide further insights into the highly complex Gdm–DNA interaction and underscore the importance of the counteranion species.</jats:p>","lang":"eng"}],"date_updated":"2022-08-08T06:40:14Z","type":"journal_article","publication":"International Journal of Molecular Sciences","language":[{"iso":"eng"}],"_id":"32589","title":"Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate","department":[{"_id":"302"}],"publication_identifier":{"issn":["1422-0067"]},"volume":23,"user_id":"48864","citation":{"mla":"Hanke, Marcel, et al. “Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate.” <i>International Journal of Molecular Sciences</i>, vol. 23, no. 15, MDPI AG, 2022, p. 8547, doi:<a href=\"https://doi.org/10.3390/ijms23158547\">10.3390/ijms23158547</a>.","ama":"Hanke M, Hansen N, Tomm E, Grundmeier G, Keller A. Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate. <i>International Journal of Molecular Sciences</i>. 2022;23(15):8547. doi:<a href=\"https://doi.org/10.3390/ijms23158547\">10.3390/ijms23158547</a>","ieee":"M. Hanke, N. Hansen, E. Tomm, G. Grundmeier, and A. Keller, “Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate,” <i>International Journal of Molecular Sciences</i>, vol. 23, no. 15, p. 8547, 2022, doi: <a href=\"https://doi.org/10.3390/ijms23158547\">10.3390/ijms23158547</a>.","apa":"Hanke, M., Hansen, N., Tomm, E., Grundmeier, G., &#38; Keller, A. (2022). Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate. <i>International Journal of Molecular Sciences</i>, <i>23</i>(15), 8547. <a href=\"https://doi.org/10.3390/ijms23158547\">https://doi.org/10.3390/ijms23158547</a>","bibtex":"@article{Hanke_Hansen_Tomm_Grundmeier_Keller_2022, title={Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate}, volume={23}, DOI={<a href=\"https://doi.org/10.3390/ijms23158547\">10.3390/ijms23158547</a>}, number={15}, journal={International Journal of Molecular Sciences}, publisher={MDPI AG}, author={Hanke, Marcel and Hansen, Niklas and Tomm, Emilia and Grundmeier, Guido and Keller, Adrian}, year={2022}, pages={8547} }","short":"M. Hanke, N. Hansen, E. Tomm, G. Grundmeier, A. Keller, International Journal of Molecular Sciences 23 (2022) 8547.","chicago":"Hanke, Marcel, Niklas Hansen, Emilia Tomm, Guido Grundmeier, and Adrian Keller. “Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate.” <i>International Journal of Molecular Sciences</i> 23, no. 15 (2022): 8547. <a href=\"https://doi.org/10.3390/ijms23158547\">https://doi.org/10.3390/ijms23158547</a>."},"status":"public","intvolume":"        23","year":"2022","publisher":"MDPI AG","author":[{"last_name":"Hanke","full_name":"Hanke, Marcel","first_name":"Marcel"},{"first_name":"Niklas","full_name":"Hansen, Niklas","last_name":"Hansen"},{"full_name":"Tomm, Emilia","last_name":"Tomm","first_name":"Emilia"},{"first_name":"Guido","full_name":"Grundmeier, Guido","last_name":"Grundmeier","id":"194"},{"last_name":"Keller","id":"48864","full_name":"Keller, Adrian","first_name":"Adrian","orcid":"0000-0001-7139-3110"}]}