Evidence map›Paper›PMID 15280243›Full record

ArticleGenetics2004

Selective and mutational patterns associated with gene expression in humans: influences on synonymous composition and intron presence.

Josep M Comeron

Abstract readComparative Study
In one paragraph

Article in Genetics, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed
–field-weighted citation impact
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

116 citing papers in PubMed.

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  11. Genome-wide role of codon usage on transcription and identification of potential regulators.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  14. Review
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  18. Review
  19. Selection On synonymous Mutations Revealed by 1135 Genomes ofEvolutionary bioinformatics online · 2020
    Article
  20. Article

56 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

1 author.

Josep M ComeronDepartment of Biological Sciences, University of Iowa, Iowa City, Iowa 52242, USA. josep-comeron@uiowa.edu

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report the results of a comprehensive study of the influence of gene expression on synonymous codons, amino acid composition, and intron presence and size in human protein-coding genes. First, in addition to a strong effect of isochores, we have detected the influence of transcription-associated mutational biases (TAMB) on gene composition. Genes expressed in different tissues show diverse degrees of TAMB, with genes expressed in testis showing the greatest influence. Second, the study of tissues with no evidence of TAMB reveals a consistent set of optimal synonymous codons favored in highly expressed genes. This result exposes the consequences of natural selection on synonymous composition to increase efficiency of translation in the human lineage. Third, overall amino acid composition of proteins closely resembles tRNA abundance but there is no difference in amino acid composition in differentially expressed genes. Fourth, there is a negative relationship between expression and CDS length. Significantly, this is observed only among genes with introns, suggesting that the cause for this relationship in humans cannot be associated only with costs of amino acid biosynthesis. Fifth, we show that broadly and highly expressed genes have more, although shorter, introns. The selective advantage for having more introns in highly expressed genes is likely counterbalanced by containment of transcriptional costs and a minimum exon size for proper splicing.

Indexed as

Gene ExpressionGenetics, PopulationSelection, GeneticAmino AcidsBase CompositionCodonConserved SequenceHumansIntronsMutationOligonucleotide Array Sequence AnalysisTranscription, GeneticAmino AcidsCodon

Identifiers

PMID15280243
PMCPMC1470943

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.