1JUC:
reference: Structural characterization of a new crystal form of the four-way Holliday junction formed by the DNA sequence d(CCGGTACCGG)2: sequence versus lattice?, Thorpe JH, Teixeira SC, Gale BC, Cardin CJ, Acta Crystallogr D Biol Crystallogr 2002 Mar;58(Pt 3):567-9. PMID: 11856858

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