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PDBsum entry 4jd8
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References listed in PDB file
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Key reference
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Title
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X-Ray crystal structure of rac-[Ru(phen)2dppz]2+ with d(atgcat)2 shows enantiomer orientations and water ordering.
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Authors
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J.P.Hall,
D.Cook,
S.R.Morte,
P.Mcintyre,
K.Buchner,
H.Beer,
D.J.Cardin,
J.A.Brazier,
G.Winter,
J.M.Kelly,
C.J.Cardin.
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Ref.
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J Am Chem Soc, 2013,
135,
12652-12659.
[DOI no: ]
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PubMed id
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Abstract
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We report an atomic resolution X-ray crystal structure containing both
enantiomers of rac-[Ru(phen)2dppz](2+) with the d(ATGCAT)2 DNA duplex (phen =
phenanthroline; dppz = dipyridophenazine). The first example of any enantiomeric
pair crystallized with a DNA duplex shows different orientations of the Λ and
Δ binding sites, separated by a clearly defined structured water monolayer. Job
plots show that the same species is present in solution. Each enantiomer is
bound at a TG/CA step and shows intercalation from the minor groove. One water
molecule is directly located on one phenazine N atom in the Δ-enantiomer only.
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Headers
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