Evidence map›Paper›PMID 25222750›Full record

ArticlePloS one2014

Evolutionary history of the PER3 variable number of tandem repeats (VNTR): idiosyncratic aspect of primate molecular circadian clock.

Flávia Cal Sabino, Amanda Oliveira Ribeiro, Sérgio Tufik, Laila Brito Torres, José Américo Oliveira, Luiz Eugênio Araújo Moraes Mello, Jeferson Souza Cavalcante, Mario Pedrazzoli

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Of Men and Mice: Modeling the Fragile X Syndrome.Frontiers in molecular neuroscience · 2018
    Article
  5. Review
  6. Article
  7. Article
  8. Sleep science (Sao Paulo, Brazil)
    Article
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.

Flávia Cal SabinoDepartment of Psychobiology, Federal University of São Paulo, São Paulo, Brazil.
Amanda Oliveira RibeiroDepartment of Genetics and Evolutionary Biology, University of São Paulo, São Paulo, Brazil.
Sérgio TufikDepartment of Psychobiology, Federal University of São Paulo, São Paulo, Brazil.
Laila Brito TorresEvandro Chagas Institute/Primate National Center (IEC-CENP) - Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil.
José Américo OliveiraDivision of Anatomy, Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, Brazil.
Luiz Eugênio Araújo Moraes MelloDepartment of Physiology, Federal University of São Paulo, São Paulo, Brazil.
Jeferson Souza CavalcanteLaboratory of Neurochemical Studies, Federal University of Rio Grande do Norte, Natal, Brazil.
Mario PedrazzoliSchool of Arts, Science and Humanities, University of São Paulo, São Paulo, Brazil.
Universidade Federal de São Paulo · BRUniversidade de São Paulo · BRMinistério da Saúde · BRUniversidade Estadual Paulista (Unesp) · BRUniversidade Federal do Rio Grande do Norte · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The PER3 gene is one of the clock genes, which function in the core mammalian molecular circadian system. A variable number of tandem repeats (VNTR) locus in the 18th exon of this gene has been strongly associated to circadian rhythm phenotypes and sleep organization in humans, but it has not been identified in other mammals except primates. To better understand the evolution and the placement of the PER3 VNTR in a phylogenetical context, the present study enlarges the investigation about the presence and the structure of this variable region in a large sample of primate species and other mammals. The analysis of the results has revealed that the PER3 VNTR occurs exclusively in simiiforme primates and that the number of copies of the primitive unit ranges from 2 to 11 across different primate species. Two transposable elements surrounding the 18th exon of PER3 were found in primates with published genome sequences, including the tarsiiforme Tarsius syrichta, which lacks the VNTR. These results suggest that this VNTR may have evolved in a common ancestor of the simiiforme branch and that the evolutionary copy number differentiation of this VNTR may be associated with primate simiiformes sleep and circadian phenotype patterns.

Indexed as

Evolution, MolecularMinisatellite RepeatsAnimalsCircadian ClocksComputer SimulationDNA Copy Number VariationsPeriod Circadian ProteinsPrimatesPeriod Circadian Proteins

Identifiers

PMID25222750
PMCPMC4164614
OpenAlexW1970674082

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.