ISDA: 4EZ2

Deposition Date 2012-05-02

Release Date 2012-10-17

Last Version Date 2023-11-08

Entry Detail

PDB ID:

4EZ2

Keywords:

DNA

Title:

Crystal Structure of d(CCGGGACCGG)4 as a four-way junction at 1.6 angstrom resolution

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.60 Å

R-Value Free:

0.24

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

C 1 2 1

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Macromolecular Entities

Polymer Type:polydeoxyribonucleotide
Molecule:5'-D(*CP*CP*GP*GP*GP*AP*CP*CP*GP*G)-3'
Chain IDs:A, B
Chain Length:10
Number of Molecules:2
Biological Source:

Ligand Molecules

Primary Citation

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

Chakraborty, A, Mandal, P.K, Gautham, N.Show

Acta Crystallogr.,Sect.F 68 1169 1174 (2012)

PMID: 23027741 DOI: 10.1107/S1744309112034926

Abstact

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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Primary Citation of related structures

Abstact

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