Evidence map›Paper›PMID 10779566›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

5-methylcytosine-DNA glycosylase activity is present in a cloned G/T mismatch DNA glycosylase associated with the chicken embryo DNA demethylation complex.

B Zhu, Y Zheng, D Hess, H Angliker, S Schwarz, M Siegmann, S Thiry, J P Jost

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

55 citing papers in PubMed, 144 citations in OpenAlex.

  1. Review
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  7. Article
  8. Article
  9. The epigenetics of aging and neurodegeneration.Progress in neurobiology · 2015
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. DNA demethylation pathways: recent insights.Genetics & epigenetics · 2013
    Review
  20. DNA demethylation by TDG.Epigenomics · 2012
    Review
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

8 authors at 1 institution in 1 country.

B ZhuFriedrich Miescher-Institut, Maulbeerstrasse 66, CH-4058 Basel, Switzerland.
Y Zheng
D Hess
H Angliker
S Schwarz
M Siegmann
S Thiry
J P Jost
Friedrich Miescher Institute · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We previously have shown that DNA demethylation by chicken embryo 5-methylcytosine DNA glycosylase (5-MCDG) needs both RNA and proteins. One of these proteins is a RNA helicase. Further peptides were sequenced, and three of them are identical to the mammalian G/T mismatch DNA glycosylase. A 3,233-bp cDNA coding for the chicken homologue of human G/T mismatch DNA glycosylase was isolated and sequenced. The derived amino acid sequence (408 aa) shows 80% identity with the human G/T mismatch DNA glycosylase, and both the C and N-terminal parts have about 50% identity. As for the highly purified chicken embryo DNA demethylation complex the recombinant protein expressed in Escherichia coli has both G/T mismatch and 5-MCDG activities. The recombinant protein has the same substrate specificity as the chicken embryo 5-MCDG where hemimethylated DNA is a better substrate than symmetrically methylated CpGs. The activity ratio of G/T mismatch and 5-MCDG is about 30:1 for the recombinant protein expressed in E. coli and 3:1 for the purified enzyme from chicken embryos. The incubation of a recombinant CpG-rich RNA isolated from the purified DNA demethylation complex with the recombinant enzyme strongly inhibits G/T mismatch glycosylase while slightly stimulating the activity of 5-MCDG. Deletion mutations indicate that G/T mismatch and 5-MCDG activities share the same areas of the N- and C-terminal parts of the protein. In reconstitution experiments RNA helicase in the presence of recombinant RNA and ATP potentiates the activity of 5-MCDG.

Indexed as

Base Pair MismatchDNA GlycosylasesThymine DNA GlycosylaseAmino Acid SequenceAnimalsBase SequenceChick EmbryoCloning, MolecularDNA RepairGene LibraryGuanineHumansMolecular Sequence DataN-Glycosyl HydrolasesOligodeoxyribonucleotidesRecombinant Proteins5-methylcytosine-DNA glycosylaseDNA GlycosylasesGuaninemismatch-specific thymine uracil-DNA glycosylaseN-Glycosyl HydrolasesOligodeoxyribonucleotidesRecombinant ProteinsRNA HelicasesThymineThymine DNA Glycosylase

Identifiers

PMID10779566
PMCPMC25794
OpenAlexW2127808005

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.