Evidence map›Paper›PMID 25181633›Full record

ReviewGenomics2014

5-Hydroxymethylcytosine: a stable or transient DNA modification?

Maria A Hahn, Piroska E Szabó, Gerd P Pfeifer

Open access · hybridAbstract readReview
In one paragraph

Review in Genomics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 128 citations in OpenAlex.

  1. Review
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  9. Review
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  16. Review
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  20. Review

12 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 1 country.

Maria A HahnBeckman Research Institute, City of Hope, Duarte CA 91010, USA.
Piroska E SzabóBeckman Research Institute, City of Hope, Duarte CA 91010, USA.
Gerd P PfeiferBeckman Research Institute, City of Hope, Duarte CA 91010, USA. Electronic address: gpfeifer@coh.org.
City of Hope · USCity Of Hope National Medical Center · US

Funding

Mechanisms of Genomic ImprintingR01GM064378 · NIGMS · VAN ANDEL RESEARCH INSTITUTE · PI SZABÓ, PIROSKA EDIT · 2002 to 2015
$4.3M
5-hydroxymethylcytosine in human cancerR01CA160965 · NCI · VAN ANDEL RESEARCH INSTITUTE · PI PFEIFER, GERD P · 2012 to 2017
$1.8M
NCI NIH HHS CA160965NCI NIH HHS R01 CA160965NIGMS NIH HHS GM064378NIGMS NIH HHS R01 GM064378
6 · The paper itself

Abstract

The DNA base 5-hydroxymethylcytosine (5hmC) is produced by enzymatic oxidation of 5-methylcytosine (5mC) by 5mC oxidases (the Tet proteins). Since 5hmC is recognized poorly by DNA methyltransferases, DNA methylation may be lost at 5hmC sites during DNA replication. In addition, 5hmC can be oxidized further by Tet proteins and converted to 5-formylcytosine and 5-carboxylcytosine, two bases that can be removed from DNA by base excision repair. The completed pathway represents a replication-independent DNA demethylation cycle. However, the DNA base 5hmC is also known to be rather stable and occurs at substantial levels, for example in the brain, suggesting that it represents an epigenetic mark by itself that may regulate chromatin structure and transcription. Focusing on a few well-studied tissues and developmental stages, we discuss the opposing views of 5hmC as a transient intermediate in DNA demethylation and as a modified DNA base with an instructive role.

Indexed as

DNA Methylation5-MethylcytosineAnimalsBrainCytosineDNA-Binding ProteinsDNA ReplicationHumans5-carboxylcytosine5-formylcytosine5-hydroxymethylcytosine5-MethylcytosineCytosineDNA-Binding Proteins5-Hydroxymethylcytosine5-MethylcytosineDNA methylation

Identifiers

PMID25181633
PMCPMC4252803
OpenAlexW2016600360

What OpenQuestion holds

Textmetadata
LicenceTDM
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.