Evidence map›Paper›PMID 22554127›Full record

ArticleBiochemistry2012

Subtle recognition of 14-base pair DNA sequences via threading polyintercalation.

Amy Rhoden Smith, Brian A Ikkanda, Garen G Holman, Brent L Iverson

Abstract read
In one paragraph

Article in Biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
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

4 authors.

Amy Rhoden SmithDepartment of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States.
Brian A Ikkanda
Garen G Holman
Brent L Iverson

Funding

Exploring Aromatic Donor-Acceptor Interactions in WaterR01GM069647 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI IVERSON, BRENT L · 2005 to 2008
$987k
NIGMS NIH HHS GM-069647
6 · The paper itself

Abstract

Small molecules that bind DNA in a sequence-specific manner could act as antibiotic, antiviral, or anticancer agents because of their potential ability to manipulate gene expression. Our laboratory has developed threading polyintercalators based on 1,4,5,8-naphthalene diimide (NDI) units connected in a head-to-tail fashion by flexible peptide linkers. Previously, a threading tetraintercalator composed of alternating minor-major-minor groove-binding modules was shown to bind specifically to a 14 bp DNA sequence with a dissociation half-life of 16 days [Holman, G. G., et al. (2011) Nat. Chem. 3, 875-881]. Herein are described new NDI-based tetraintercalators with a different major groove-binding module and a reversed N to C directionality of one of the minor groove-binding modules. DNase I footprinting and kinetic analyses revealed that these new tetraintercalators are able to discriminate, by as much as 30-fold, 14 bp DNA binding sites that differ by 1 or 2 bp. Relative affinities were found to correlate strongly with dissociation rates, while overall C(2) symmetry in the DNA-binding molecule appeared to contribute to enhanced association rates.

Indexed as

Base PairingBase SequenceBinding SitesDeoxyribonuclease IDNADNA FootprintingImidesIntercalating AgentsModels, MolecularNaphthalenesNucleic Acid ConformationDeoxyribonuclease IDNAImidesIntercalating AgentsnaphthalenediimideNaphthalenes

Identifiers

PMID22554127
PMCPMC3369501

What OpenQuestion holds

Textmetadata
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.