Evidence map›Paper›PMID 22243337›Full record

ArticleBiochemistry2012

Inducible alkylation of DNA by a quinone methide-peptide nucleic acid conjugate.

Yang Liu, Steven E Rokita

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 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. 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

2 authors.

Yang LiuDepartment of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States.
Steven E Rokita

Funding

TARGET PROMOTED ALKYLATION OF NUCLEIC ACIDSR01CA081571 · NCI · UNIV OF MARYLAND, COLLEGE PARK · PI ROKITA, STEVEN E · 1999 to 2008
$1.8M
NCI NIH HHS CA81571NCI NIH HHS R01 CA081571
6 · The paper itself

Abstract

The reversibility of alkylation by a quinone methide intermediate (QM) avoids the irreversible consumption that plagues most reagents based on covalent chemistry and allows for site specific reaction that is controlled by the thermodynamics rather than kinetics of target association. This characteristic was originally examined with an oligonucleotide QM conjugate, but broad application depends on alternative derivatives that are compatible with a cellular environment. Now, a peptide nucleic acid (PNA) derivative has been constructed and shown to exhibit an equivalent ability to delivery the reactive QM in a controlled manner. This new conjugate demonstrates high selectivity for a complementary sequence of DNA even when challenged with an alternative sequence containing a single T/T mismatch. Alternatively, alkylation of noncomplementary sequences is only possible when a template strand is present to colocalize the conjugate and its target. For efficient alkylation in this example, a single-stranded region of the target is required adjacent to the QM conjugate. Most importantly, the intrastrand self-adducts formed between the PNA and its attached QM remained active and reversible over more than 8 days in aqueous solution prior to reaction with a chosen target added subsequently.

Indexed as

AlkylationDNADrug Delivery SystemsDrug DesignHydrolysisIndolequinonesNucleic Acid HeteroduplexesOxidation-ReductionPeptide Nucleic AcidsThermodynamicsDNAIndolequinonesNucleic Acid HeteroduplexesPeptide Nucleic Acidsquinone methide

Identifiers

PMID22243337
PMCPMC3277674

What OpenQuestion holds

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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.