Evidence map›Paper›PMID 19015511›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

DNA energy landscapes via calorimetric detection of microstate ensembles of metastable macrostates and triplet repeat diseases.

Jens Völker, Horst H Klump, Kenneth J Breslauer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

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  12. Mechanisms of transcription factor selectivity.Trends in genetics : TIG · 2010
    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

3 authors.

Jens VölkerDepartment of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Rd, Piscataway, NJ 08854, USA.
Horst H Klump
Kenneth J Breslauer

Funding

THERMODYNAMIC PROPERTIES OF EXOCYCLIC DNA ADDUCTSP01CA047995 · NCI · STATE UNIVERSITY NEW YORK STONY BROOK · PI GROLLMAN, ARTHUR PATRICK · 1990 to 2009
$9.8M
DNA STABILITY AND FLEXIBILITY: A THERMODYNAMIC STUDYR01GM023509 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI BRESLAUER, KENNETH J. · 1985 to 1998
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DRUG-DNA INTERACTIONS: THE THERMODYNAMICS OF RECOGNITIONR01GM034469 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI BRESLAUER, KENNETH J. · 1985 to 1994
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NCI NIH HHS CA47995NCI NIH HHS P01 CA047995NIGMS NIH HHS R01 GM023509NIGMS NIH HHS R01 GM034469
6 · The paper itself

Abstract

Biopolymers exhibit rough energy landscapes, thereby allowing biological processes to access a broad range of kinetic and thermodynamic states. In contrast to proteins, the energy landscapes of nucleic acids have been the subject of relatively few experimental investigations. In this study, we use calorimetric and spectroscopic observables to detect, resolve, and selectively enrich energetically discrete ensembles of microstates within metastable DNA structures. Our results are consistent with metastable, "native" DNA states being composed of an ensemble of discrete and kinetically stable microstates of differential stabilities, rather than exclusively being a single, discrete thermodynamic species. This conceptual construct is important for understanding the linkage between biopolymer conformational/configurational space and biological function, such as in protein folding, allosteric control of enzyme activity, RNA and DNA folding and function, DNA structure and biological regulation, etc. For the specific DNA sequences and structures studied here, the demonstration of discrete, kinetically stable microstates potentially has biological consequences for understanding the development and onset of DNA expansion and triplet repeat diseases.

Indexed as

Trinucleotide RepeatsCalorimetryDNAGenetic Diseases, InbornHumansNucleic Acid ConformationDNA

Identifiers

PMID19015511
PMCPMC2584148

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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.