Evidence map›Paper›PMID 23818176›Full record

ArticleBiopolymers2013

A historical account of Hoogsteen base-pairs in duplex DNA.

Evgenia N Nikolova, Huiqing Zhou, Federico L Gottardo, Heidi S Alvey, Isaac J Kimsey, Hashim M Al-Hashimi

Abstract read
In one paragraph

Article in Biopolymers, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

53 citing papers in PubMed, 128 citations in OpenAlex.

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  10. Nucleobases in Meteorites to Nucleobases in RNA and DNA?Journal of molecular evolution · 2022
    Article
  11. Probing Watson-Crick and Hoogsteen base pairing in duplex DNA using dynamic nuclear polarization solid-state NMR spectroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  12. Current Developments ofBiomedicines · 2022
    Review
  13. Measuring thermodynamic preferences to form non-native conformations in nucleic acids using ultraviolet melting.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  14. Article
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  17. Review
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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

6 authors at 2 institutions in 1 country.

Evgenia N NikolovaDepartment of Chemistry & Biophysics, The University of Michigan, 930 North University Avenue, Ann Arbor, MI, 48109-1055; Integrative Structural & Computational Biology Department, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037.
Huiqing Zhou
Federico L Gottardo
Heidi S Alvey
Isaac J Kimsey
Hashim M Al-Hashimi
University of Michigan–Ann Arbor · USScripps Research Institute · US

Funding

Role of DNA structural dynamics in mutagenesis and oncogenesisR01GM089846 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Hashim M Al-Hashimi · 2010 to 2026
$5.2M
NIGMS NIH HHS R01 GM089846NIGMS NIH HHS R01GM089846
6 · The paper itself

Abstract

In 1957, a unique pattern of hydrogen bonding between N3 and O4 on uracil and N7 and N6 on adenine was proposed to explain how poly(rU) strands can associate with poly(rA)-poly(rU) duplexes to form triplexes. Two years later, Karst Hoogsteen visualized such a noncanonical A-T base-pair through X-ray analysis of co-crystals containing 9-methyladenine and 1-methylthymine. Subsequent X-ray analyses of guanine and cytosine derivatives yielded the expected Watson-Crick base-pairing, but those of adenine and thymine (or uridine) did not yield Watson-Crick base-pairs, instead favoring "Hoogsteen" base-pairing. More than two decades ensued without experimental "proof" for A-T Watson-Crick base-pairs, while Hoogsteen base-pairs continued to surface in AT-rich sequences, closing base-pairs of apical loops, in structures of DNA bound to antibiotics and proteins, damaged and chemically modified DNA, and in polymerases that replicate DNA via Hoogsteen pairing. Recently, NMR studies have shown that base-pairs in duplex DNA exist as a dynamic equilibrium between Watson-Crick and Hoogsteen forms. There is now little doubt that Hoogsteen base-pairs exist in significant abundance in genomic DNA, where they can expand the structural and functional versatility of duplex DNA beyond that which can be achieved based only on Watson-Crick base-pairing. Here, we provide a historical account of the discovery and characterization of Hoogsteen base-pairs, hoping that this will inform future studies exploring the occurrence and functional importance of these alternative base-pairs.

Indexed as

Base PairingDNAHydrogen BondingDNADNA recognitionDNA structureHoogsteen base-pairreplicationtransient states

Identifiers

PMID23818176
PMCPMC3844552
OpenAlexW2149148562

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.