Evidence map›Paper›PMID 12815257›Full record

ArticleJournal of biomolecular NMR2003

Overall structure and sugar dynamics of a DNA dodecamer from homo- and heteronuclear dipolar couplings and 31P chemical shift anisotropy.

Zhengrong Wu, Frank Delaglio, Nico Tjandra, Victor B Zhurkin, Ad Bax

Abstract read
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In one paragraph

Article in Journal of biomolecular NMR, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 151 citations in OpenAlex.

  1. Article
  2. Article
  3. Hyperpolarized NMR Reveals Low-Populated Folding Intermediates in DNA.Journal of the American Chemical Society · 2025
    Article
  4. Article
  5. Article
  6. Determination of silver(I)-binding sites in canonical B-DNA by NMR spectroscopy.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2025
    Article
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Zhengrong WuLaboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
Frank Delaglio
Nico Tjandra
Victor B Zhurkin
Ad Bax
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Cancer Institute · USNational Heart Lung and Blood Institute · US

Funding

Nmr Studies Of The Regulation Of Cell SignalingZIAHL001048 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI TJANDRA, NICO · 2009 to 2025
$20.1M
NMR STUDIES OF THE REGULATION OF CELL SIGNALINGZ01HL001048 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI TJANDRA, NICO · 1998 to 2008
$3.4M
Study of membrane protein structure by NMR spectroscopy: the KcsA channelZ01DK029020 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI BAX, AD - · 1986 to 2008
$427k
DNA Deformations and Interactions with Transcription FacZ01BC008371 · BC · BASIC SCIENCES · PI ZHURKIN, VICTOR · 1996 to 2006
–
6 · The paper itself

Abstract

The solution structure of d(CGCGAATTCGCG)(2) has been determined on the basis of an exceptionally large set of residual dipolar couplings. In addition to the heteronuclear (13)C-(1)H and (15)N-(1)H and qualitative homonuclear (1)H-(1)H dipolar couplings, previously measured in bicelle medium, more than 300 quantitative (1)H-(1)H and 22 (31)P-(1)H dipolar restraints were obtained in liquid crystalline Pf1 medium, and 22 (31)P chemical shift anisotropy restraints. High quality DNA structures can be obtained solely on the basis of these new restraints, and these structures are in close agreement with those calculated previously on the basis of (13)C-(1)H and (15)N-(1)H dipolar couplings. In the newly calculated structures, (31)P-(1)H dipolar and (3)JsubH3(')Psub couplings and (31)P CSA data restrain the phosphodiester backbone torsion angles. The final structure represents a quite regular B-form helix with a modest bending of approximately 10 degrees, which is essentially independent of whether or not electrostatic terms are used in the calculation. Combined, the number of homo- and heteronuclear dipolar couplings significantly exceeds the number of degrees of freedom in the system. Results indicate that the dipolar coupling data cannot be fit by a single structure, but are compatible with the presence of rapid equilibria between C2(')-endo and C3(')-endo deoxyribose puckers (sugar switching). The C2(')-H2(')/H2(") dipolar couplings in B-form DNA are particularly sensitive to sugar pucker and yield the largest discrepancies when fit to a single structure. To resolve these discrepancies, we suggest a simplified dipolar coupling analysis that yields N/S equilibria for the ribose sugar puckers, which are in good agreement with previous analyses of NMR J(HH) couplings, with a population of the minor C3(')-endo form higher for pyrimidines than for purines.

Indexed as

AnisotropyDeoxyriboseModels, MolecularNuclear Magnetic Resonance, BiomolecularNucleic Acid ConformationOligodeoxyribonucleotidesPhosphorus IsotopesSolutionsDeoxyriboseOligodeoxyribonucleotidesPhosphorus IsotopesSolutions

Identifiers

PMID12815257
OpenAlexW2119627230

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.