4GDO:
reference: Exploiting tertiary structure through local folds for crystallographic phasing., Sammito M, Millan C, Rodriguez DD, de Ilarduya IM, Meindl K, De Marino I, Petrillo G, Buey RM, de Pereda JM, Zeth K, Sheldrick GM, Uson I, Nat Methods. 2013 Sep 15. doi: 10.1038/nmeth.2644. PMID: 24037245

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