1d53

CRYSTAL STRUCTURE AT 1.5 ANGSTROMS RESOLUTION OF D(CGCICICG), AN OCTANUCLEOTIDE CONTAINING INOSINE, AND ITS COMPARISON WITH D(CGCG) AND D(CGCGCG) STRUCTURESCRYSTAL STRUCTURE AT 1.5 ANGSTROMS RESOLUTION OF D(CGCICICG), AN OCTANUCLEOTIDE CONTAINING INOSINE, AND ITS COMPARISON WITH D(CGCG) AND D(CGCGCG) STRUCTURES

Structural highlights 1d53 is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The octadeoxyribonucleotide d(CGCICICG) has been crystallized in space group P(6)5(22) with unit cell dimensions of a = b = 31.0 A and c = 43.7 A, and X-ray diffraction data have been collected to 1.5-A resolution. Precession photographs and the self-Patterson function indicate that 12 base pairs of Z-conformation DNA stack along the c-axis, and the double helices pack in a hexagonal array similar to that seen in other crystals of Z-DNA. The structure has been solved by both Patterson deconvolution and molecular replacement methods and refined in space group P(6)5 to an R factor of 0.225 using 2503 unique reflections greater than 3.0 sigma (F). Comparison of the molecules within the hexagonal lattice with highly refined crystal structures of other Z-DNA reveals only minor conformational differences, most notably in the pucker of the deoxyribose of the purine residues. The DNA has multiple occupancy of C:I and C:G base pairs, and C:I base pairs adopt a conformation similar to that of C:G base pairs. Crystal structure at 1.5-A resolution of d(CGCICICG), an octanucleotide containing inosine, and its comparison with d(CGCG) and d(CGCGCG) structures.,Kumar VD, Harrison RW, Andrews LC, Weber IT Biochemistry. 1992 Feb 11;31(5):1541-50. PMID:1737011 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

spinqualitylabelsall models 1d53, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image