Ion Channel-like Crystallographic Signatures in Modified Guanine–Potassium/Sodium Interactions
datasetposted on 06.02.2013 by N. Nagapradeep, Suneeta Sharma, Sandeep Verma
Datasets usually provide raw data for analysis. This raw data often comes in spreadsheet form, but can be any collection of data, on which analysis can be performed.
This communication describes crystallographic details of structures reminiscent of ion channels, formed from regioisomeric N7 and N9 guanine-carboxylate conjugates with potassium/sodium ions and their subsequent STM observations on Au(111) surface. Ion channel-like crystal structures were obtained with the observation of a notable shift in metal ion coordination from carbonyl to carboxylate oxygen. These results are expected to provide insight into competing sites for modified guanine–metal coordination, an entry into guanine-based ion channels and a route toward guanine-functionalized surfaces.