Evidence map›Paper›PMID 29040737›Full record

ArticleNucleic acids research2017

Calcium-driven DNA synthesis by a high-fidelity DNA polymerase.

Céline Ralec, Etienne Henry, Mélanie Lemor, Tom Killelea, Ghislaine Henneke

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Bst polymerase - a humble relative of Taq polymerase.Computational and structural biotechnology journal · 2023
    Review
  9. Article
  10. Peptide Aptamer PA3 Attenuates the Viability ofFrontiers in microbiology · 2022
    Article
  11. Article
  12. Liquid drop of DNA libraries reveals total genome information.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Article
  14. Synthesis of phosphoramidate-linked DNA by a modified DNA polymerase.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Communications biology · 2019
    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

5 authors at 2 institutions in 1 country.

Céline RalecIfremer, Centre de Brest, LM2E, UMR 6197, Technopole Brest-Iroise, 29280 Plouzané, France.
Etienne HenryIfremer, Centre de Brest, LM2E, UMR 6197, Technopole Brest-Iroise, 29280 Plouzané, France.
Mélanie LemorIfremer, Centre de Brest, LM2E, UMR 6197, Technopole Brest-Iroise, 29280 Plouzané, France.
Tom KilleleaIfremer, Centre de Brest, LM2E, UMR 6197, Technopole Brest-Iroise, 29280 Plouzané, France.
Ghislaine HennekeIfremer, Centre de Brest, LM2E, UMR 6197, Technopole Brest-Iroise, 29280 Plouzané, France.
Ifremer · FRUniversité de Bretagne Occidentale · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Divalent metal ions, usually Mg2+, are required for both DNA synthesis and proofreading functions by DNA polymerases (DNA Pol). Although used as a non-reactive cofactor substitute for binding and crystallographic studies, Ca2+ supports DNA polymerization by only one DNA Pol, Dpo4. Here, we explore whether Ca2+-driven catalysis might apply to high-fidelity (HiFi) family B DNA Pols. The consequences of replacing Mg2+ by Ca2+ on base pairing at the polymerase active site as well as the editing of terminal nucleotides at the exonuclease active site of the archaeal Pyrococcus abyssi DNA Pol (PabPolB) are characterized and compared to other (families B, A, Y, X, D) DNA Pols. Based on primer extension assays, steady-state kinetics and ion-chased experiments, we demonstrate that Ca2+ (and other metal ions) activates DNA synthesis by PabPolB. While showing a slower rate of phosphodiester bond formation, nucleotide selectivity is improved over that of Mg2+. Further mechanistic studies show that the affinities for primer/template are higher in the presence of Ca2+ and reinforced by a correct incoming nucleotide. Conversely, no exonuclease degradation of the terminal nucleotides occurs with Ca2+. Evolutionary and mechanistic insights among DNA Pols are thus discussed.

Indexed as

CalciumDNADNA-Directed DNA PolymeraseDNA PrimersExodeoxyribonucleasesMagnesiumPyrococcus abyssiCalciumDNADNA-Directed DNA PolymeraseDNA PrimersExodeoxyribonucleasesMagnesium

Identifiers

PMID29040737
PMCPMC5716173
OpenAlexW2760861200

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.