214d
From Proteopedia
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| - | [[Image:214d.gif|left|200px]] | + | [[Image:214d.gif|left|200px]] |
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| - | '''THE SOLUTION STRUCTURE OF A DNA DUPLEX CONTAINING A SINGLE 2'-O-METHYL-BETA-D-ARAT''' | + | {{Structure |
| + | |PDB= 214d |SIZE=350|CAPTION= <scene name='initialview01'>214d</scene> | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''THE SOLUTION STRUCTURE OF A DNA DUPLEX CONTAINING A SINGLE 2'-O-METHYL-BETA-D-ARAT''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 214D is a [ | + | 214D is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=214D OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of a DNA duplex containing a single 2'-O-methyl-beta-D-araT: combined use of NMR, restrained molecular dynamics, and full relaxation matrix refinement., Gotfredsen CH, Spielmann HP, Wengel J, Jacobsen JP, Bioconjug Chem. 1996 Nov-Dec;7(6):680-8. PMID:[http:// | + | Structure of a DNA duplex containing a single 2'-O-methyl-beta-D-araT: combined use of NMR, restrained molecular dynamics, and full relaxation matrix refinement., Gotfredsen CH, Spielmann HP, Wengel J, Jacobsen JP, Bioconjug Chem. 1996 Nov-Dec;7(6):680-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8950487 8950487] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Gotfredsen, C H.]] | [[Category: Gotfredsen, C H.]] | ||
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[[Category: nmr]] | [[Category: nmr]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:42:10 2008'' |
Revision as of 13:42, 20 March 2008
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THE SOLUTION STRUCTURE OF A DNA DUPLEX CONTAINING A SINGLE 2'-O-METHYL-BETA-D-ARAT
Overview
Two-dimensional 1H NMR spectroscopy was used to determine the solution structure of the double-stranded DNA oligonucleotide d(5'-CGCATATAGCC-3'): d(5'-GGCTAXATGCG-3'), where X is 1-(2-O-methyl-beta-D-arabinofuranosyl)thymine. The structure determination was based on a total relaxation matrix analysis of NOESY cross-peak intensities using the MARDIGRAS program. The improved RANDMARDI procedure was used during the calculations to include the experimental "noise" in the NOESY spectra. The NOE-derived distance restraints were applied in restrained molecular dynamics calculations. Twenty final structures each were generated for the modified DNA duplex from both A-form and B-form DNA starting structures. The root-mean-square deviation of the coordinates for the 40 structures was 0.82 A. The duplex adopts a normal B-DNA-type helix, and the spectra as well as the structure show that the modified nucleotide X adopts a C2'-endo (S) sugar conformation. There are no significant changes in the helix originating from the modified nucleotide. The CH3O group on X is directed toward the major groove, and there seems to be free space for further modifications at this position.
About this Structure
214D is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Structure of a DNA duplex containing a single 2'-O-methyl-beta-D-araT: combined use of NMR, restrained molecular dynamics, and full relaxation matrix refinement., Gotfredsen CH, Spielmann HP, Wengel J, Jacobsen JP, Bioconjug Chem. 1996 Nov-Dec;7(6):680-8. PMID:8950487
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