Evidence map›Paper›PMID 26890210›Full record

ArticleEpigenetics2016

Genome-wide methylation analysis of retrocopy-associated CpG islands and their genomic environment.

Katrin Grothaus, Deniz Kanber, Alexandra Gellhaus, Barbara Mikat, Julia Kolarova, Reiner Siebert, Dagmar Wieczorek, Bernhard Horsthemke

Open access · bronzeAbstract read
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Article in Epigenetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

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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 5 institutions in 1 country.

Katrin Grothausa Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen , Essen , Germany.
Deniz Kanbera Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen , Essen , Germany.
Alexandra Gellhausb Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Essen , Essen , Germany.
Barbara Mikata Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen , Essen , Germany.
Julia Kolarovac Institut für Humangenetik, Christian-Albrechts-Universität Kiel & Universitätsklinikum Schleswig-Holstein , Campus Kiel, Kiel , Germany.
Reiner Siebertc Institut für Humangenetik, Christian-Albrechts-Universität Kiel & Universitätsklinikum Schleswig-Holstein , Campus Kiel, Kiel , Germany.
Dagmar Wieczoreka Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen , Essen , Germany.
Bernhard Horsthemkea Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen , Essen , Germany.
University of Duisburg-Essen · DEEssen University Hospital · DEKlinik für Frauenheilkunde · DEUniversity Hospital Schleswig-Holstein · DEUniversity of Lübeck · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gene duplication by retrotransposition, i.e., the reverse transcription of an mRNA and integration of the cDNA into the genome, is an important mechanism in evolution. Based on whole-genome bisulfite sequencing of monocyte DNA, we have investigated the methylation state of all CpG islands (CGIs) associated with a retrocopy (n = 1,319), their genomic environment, as well as the CGIs associated with the ancestral genes. Approximately 10% of retrocopies are associated with a CGI. Whereas almost all CGIs of the human genome are unmethylated, 68% of the CGIs associated with a retrocopy are methylated. In retrocopies resulting from multiple retrotranspositions of the same ancestral gene, the methylation state of the CGI often differs. There is a strong positive correlation between the methylation state of the CGI/retrocopy and their genomic environment, suggesting that the methylation state of the integration site determined the methylation state of the CGI/retrocopy, or that methylation of the retrocopy by a host defense mechanism has spread into the adjacent regions. Only a minor fraction of CGI/retrocopies (n = 195) has intermediate methylation levels. Among these, the previously reported CGI/retrocopy in intron 2 of the RB1 gene (PPP1R26P1) as well as the CGI associated with the retrocopy RPS2P32 identified in this study carry a maternal methylation imprint. In conclusion, these findings shed light on the evolutionary dynamics and constraints of DNA methylation.

Indexed as

Genome, HumanCpG IslandsDNA MethylationGenomic ImprintingHumansIntronsMaternal InheritanceMonocytesPromoter Regions, GeneticRetinoblastoma Binding ProteinsRetroelementsSequence Analysis, DNAUbiquitin-Protein LigasesRB1 protein, humanRetinoblastoma Binding ProteinsRetroelementsUbiquitin-Protein LigasesCpG islandsDNA methylationimprintingretrotranspositionRPS2P32

Identifiers

PMID26890210
PMCPMC4854546
OpenAlexW2289616560

What OpenQuestion holds

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Registered trials

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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.