1ih4 | pdb_00001ih4

Multi-Conformation Crystal Structure of GGm5CGCC

spinqualitylabelsall models 1ih4, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1ih4 is a 8 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. NonStd Res: 5CM Related: 1ih1, 1ih2, 1ih3, 1ih6 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The transition between B- and A-DNA was first observed nearly 50 years ago. We have now mapped this transformation through a set of single-crystal structures of the sequence d(GGCGCC)2, with various intermediates being trapped by methylating or brominating the cytosine bases. The resulting pathway progresses through 13 conformational steps, with a composite structure that pairs A-nucleotides with complementary B-nucleotides serving as a distinct transition intermediate. The details of each step in the conversion of B- to A-DNA are thus revealed at the atomic level, placing intermediates for this and other sequences in the context of a common pathway. A crystallographic map of the transition from B-DNA to A-DNA.,Vargason JM, Henderson K, Ho PS Proc Natl Acad Sci U S A. 2001 Jun 19;98(13):7265-70. Epub 2001 Jun 5. PMID:11390969 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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