2d47

MOLECULAR STRUCTURE OF A COMPLETE TURN OF A-DNA

spinqualitylabelsall models 2d47, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2d47 is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: SPM Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed We have determined the crystal structure of the dodecamer d(CCCCCGCGGGGG), showing for the first time a complete turn of A-DNA. It has average structural parameters similar to those determined in fibres. Nevertheless it shows a considerable local variation in structure which is in part associated with the presence of a bound spermine molecule. We conclude that the local DNA conformation does not only depend on the base sequence, but may be strongly modified upon interaction with other molecules. In particular, the CpG sequence, which is found in hypersensitive regions of the genome, appears to be able to easily change its conformation under external influences. Molecular structure of a complete turn of A-DNA.,Verdaguer N, Aymami J, Fernandez-Forner D, Fita I, Coll M, Huynh-Dinh T, Igolen J, Subirana JA J Mol Biol. 1991 Sep 20;221(2):623-35. PMID:1920437 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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