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Updated: May 18, 2026

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
Published on: May 27, 2018
Structure of d(CCGGGACCGG)4 as a four-way junction at 1.6 Å resolution: new insights into solvent interactions
Arka Chakraborty1, Pradeep Kumar Mandal, Namasivayam Gautham
1CAS in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, Tamil Nadu 600 025, India.
Abstract:
The crystal structure of the decamer sequence d(CCGGGACCGG)(4) has previously been reported at 2.16 Å resolution as a four-way junction. Here, the structure of this sequence is reported at the significantly higher resolution of 1.6 Å, which is the highest resolution reported for a four-way junction. This allowed the unambiguous identification of an extensive hydration network with distinct patterns and solvent-mediated interactions that shed new light on the role of water in the formation and stabilization of junction structures.
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