3ajj | pdb_00003ajj

Crystal Structure of d(CGCGGATf5UCGCG): 5-Formyluridine/Guanosine Base-pair in B-DNA

spinqualitylabelsall models 3ajj, resolution 3.02Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3ajj is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. NonStd Res: UFR Related: 3ajk, 3ajl Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Hydroxyl radicals are potent mutagens that attack DNA to form various base and ribose derivatives. One of the major damaged thymine derivatives is 5-formyluracil (fU), which induces pyrimidine transition during replication. In order to establish the structural basis for such mutagenesis, the crystal structures of two kinds of DNA d(CGCGRATfUCGCG) with R = A/G have been determined by X-ray crystallography. The fU residues form a Watson-Crick-type pair with A and two types of pairs (wobble and reversed wobble) with G, the latter being a new type of base pair between ionized thymine base and guanine base. In silico structural modeling suggests that the DNA polymerase can accept the reversed wobble pair with G, as well as the Watson-Crick pair with A. Insights into the structures of DNA damaged by hydroxyl radical: crystal structures of DNA duplexes containing 5-formyluracil.,Tsunoda M, Sakaue T, Naito S, Sunami T, Abe N, Ueno Y, Matsuda A, Takenaka A J Nucleic Acids. 2010 Oct 7;2010:107289. PMID:20976303 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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