Evidence map›Paper›PMID 8151759›Full record

ArticleJournal of virology1994

Why is CpG suppressed in the genomes of virtually all small eukaryotic viruses but not in those of large eukaryotic viruses?

S Karlin, W Doerfler, L R Cardon

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of virology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 172 papers.

0numbers the graph read from it
0cells of the map it votes in
172citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

172 citing papers in PubMed, 336 citations in OpenAlex.

  1. Article
  2. Epigenomic methylome landscape of promoters in vertebrate genomes.bioRxiv : the preprint server for biology · 2026
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  11. Host ZAP activity correlates with the levels of CpG suppression in primate lentiviruses.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Article
  13. Article
  14. Review
  15. Article
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  20. Article

112 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 1 institution in 1 country.

S KarlinDepartment of Mathematics, Stanford University, California 94305.
W Doerfler
L R Cardon
Stanford University · US

Funding

THEORY &APPLIED STUDIES IN EVOLUTIONARY GENETICSR01GM010452 · NIGMS · STANFORD UNIVERSITY · PI KARLIN, SAMUEL · 1985 to 2006
$2.1M
MOLECULAR SEQUENCE DATAR01HG000335 · NHGRI · STANFORD UNIVERSITY · PI KARLIN, SAMUEL · 1990 to 2001
$449k
STATISTICAL ANALYSIS OF NUCLEIC ACID SEQUENCESF32HG000085 · NHGRI · STANFORD UNIVERSITY · PI LON, CARDON · 1992 to 1994
–
NHGRI NIH HHS HG00085-01NHGRI NIH HHS HG00335-06NIGMS NIH HHS GM10452-29
6 · The paper itself

Abstract

Dinucleotide over- and underrepresentation is evaluated in all available completely sequenced DNA or RNA viral genomes, ranging in size from 3 to 250 kb (available RNA viruses fall into the small-virus category). The dinucleotide CpG is statistically underrepresented (suppressed) in all but four of the small viruses (more than 75 with lengths of < 30 kb) but has normal relative abundances in most large viruses (> or = 30 kb). Most retrotransposons in eukaryotic species also show low CpG relative abundances. Interpretations, especially in some cases of DNA viruses or viruses with a DNA intermediate, might relate to methylation effects and modes of viral integration and excision. Other possible contributing factors relate to dinucleotide stacking energies, special mutation mechanisms, and evolutionary events.

Indexed as

Genome, ViralArginineBase CompositionBiological EvolutionDinucleoside PhosphatesDNA Restriction EnzymesDNA Transposable ElementsDNA, ViralDNA VirusesEukaryotic CellsMolecular WeightPlant VirusesRNA, ViralRNA VirusesSuppression, GeneticVirusesArginineCpG dinucleotideDinucleoside PhosphatesDNA Restriction EnzymesDNA Transposable ElementsDNA, ViralRNA, Viral

Identifiers

PMID8151759
PMCPMC236777
OpenAlexW2161167739

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.