Evidence map›Paper›PMID 15956101›Full record

ArticleNucleic acids research2005

Real-time monitoring of enzymatic DNA hydrolysis by electrospray ionization mass spectrometry.

Robert H H van den Heuvel, Sara Gato, Cees Versluis, Pascal Gerbaux, Colin Kleanthous, Albert J R Heck

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Nucleic acids research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Colicin biology.Microbiology and molecular biology reviews : MMBR · 2007
    Review
  8. Article
  9. Article
  10. Monitoring the zinc affinity of the metallo-beta-lactamase CphA by automated nanoESI-MS.Journal of the American Society for Mass Spectrometry · 2006
    Article
  11. 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

6 authors at 1 institution in 1 country.

Robert H H van den HeuvelDepartment of Biomolecular Mass Spectrometry, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University Sorbonnelaan 16, 3584 CA Utrecht, The Netherlands. r.h.h.vandenheuvel@chem.uu.nl
Sara Gato
Cees Versluis
Pascal Gerbaux
Colin Kleanthous
Albert J R Heck
Utrecht University · NL

Funding

Biotechnology and Biological Sciences Research Council BB/C515520/1
6 · The paper itself

Abstract

A fast and direct method for the monitoring of enzymatic DNA hydrolysis was developed using electrospray ionization mass spectrometry. We incorporated the use of a robotic chip-based electrospray ionization source for increased reproducibility and throughput. The mass spectrometry method allows the detection of DNA fragments and intact non-covalent protein-DNA complexes in a single experiment. We used the method to monitor in real-time single-stranded (ss) DNA hydrolysis by colicin E9 DNase and to characterize transient non-covalent E9 DNase-DNA complexes present during the hydrolysis reaction. The mass spectra showed that E9 DNase interacts with ssDNA in the absence of a divalent metal ion, but is strictly dependent on Ni2+ or Co2+ for ssDNA hydrolysis. We demonstrated that the sequence selectivity of E9 DNase is dependent on the ratio protein:ssDNA or the ssDNA concentration and that only 3'-hydroxy and 5'-phosphate termini are produced. It was also shown that the homologous E7 DNase is reactive with Zn2+ as transition metal ion and that this DNase displays a different sequence selectivity. The method described is of general use to analyze the reactivity and specificity of nucleases.

Indexed as

Spectrometry, Mass, Electrospray IonizationColicinsDNA, Single-StrandedEndodeoxyribonucleasesEscherichia coli ProteinsHydrolysisSubstrate SpecificityTime FactorsColicinsDNA, Single-StrandedEndodeoxyribonucleasesEscherichia coli ProteinsimmE9 protein, E coli

Identifiers

PMID15956101
PMCPMC1150282
OpenAlexW1506294088

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.