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Structure of d(CCGGGACCGG)4 as a four-way junction at 1.6?A resolution: new insights into solvent interactions.


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.

SUBMITTER: Chakraborty A 

PROVIDER: S-EPMC3497973 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Structure of d(CCGGGACCGG)4 as a four-way junction at 1.6 Å resolution: new insights into solvent interactions.

Chakraborty Arka A   Mandal Pradeep Kumar PK   Gautham Namasivayam N  

Acta crystallographica. Section F, Structural biology and crystallization communications 20120925 Pt 10


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 st  ...[more]

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