1bw7 | pdb_00001bw7

SOLUTION STRUCTURE OF A DNA DUPLEX CONTAINING A REPLICABLE DIFLUOROTOLUENE-ADENINE PAIR

spinqualitylabelsall models 1bw7, 1 NMR models Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1bw7 is a 2 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. NonStd Res: DFT Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Publication Abstract from PubMed A nonpolar aromatic nucleoside derivative based on 2,4-difluorotoluene (F), a non-hydrogen bonding shape analog of thymidine, was recently shown to be replicated against adenine with high efficiency and fidelity. This led to the suggestion that geometric matching, potentially even in the absence of hydrogen bonding between bases in a pair, may be sufficient to direct nucleotide selection during replication. We have examined the solution structure of the F-A pair in the context of a 12 base pair DNA duplex. We find that, despite the destabilization caused by this analog, the F-A pair very closely resembles that of a T x A pair in the same context. This lends support to the importance of shape matching in replication. Solution structure of a DNA duplex containing a replicable difluorotoluene-adenine pair.,Guckian KM, Krugh TR, Kool ET Nat Struct Biol. 1998 Nov;5(11):954-9. PMID:9808039 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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