Evidence map›Paper›PMID 16425037›Full record

ArticleHuman genetics2006

Inactivation status of PCDH11X: sexual dimorphisms in gene expression levels in brain.

Alexandra M Lopes, Norman Ross, James Close, Adam Dagnall, António Amorim, Timothy J Crow

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Human genetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 53 citations in OpenAlex.

  1. Epigenetic mechanisms regulate sex-specific bias in disease manifestations.Journal of molecular medicine (Berlin, Germany) · 2022
    Review
  2. Review
  3. Genes that escape from X-chromosome inactivation: Potential contributors to Klinefelter syndrome.American journal of medical genetics. Part C, Seminars in medical genetics · 2020
    Review
  4. Article
  5. Review
  6. Genetics of the human Y chromosome and its association with male infertility.Reproductive biology and endocrinology : RB&E · 2018
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Dysregulation of X-linked gene expression in Klinefelter's syndrome and association with verbal cognition.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2007
    Article
  20. Replication profile of PCDH11X and PCDH11Y, a gene pair located in the non-pseudoautosomal homologous region Xq21.3/Yp11.2.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2007
    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

6 authors at 4 institutions in 2 countries.

Alexandra M LopesIPATIMUP, Instituto de Patologia e Imunologia Molecular da Universidade do Porto, R. Dr Roberto Frias, S/N, 4200-465, Porto, Portugal. alopes@ipatimup.pt
Norman Ross
James Close
Adam Dagnall
António Amorim
Timothy J Crow
University of Oxford · GBIPO Porto · PTUniversidade do Porto · PTWarneford Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genes escaping X-inactivation are predicted to contribute to differences in gene dosage between the sexes and are the prime candidates for being involved in the phenotype observed in individuals with X chromosome aneuploidies. Of particular interest is ProtocadherinX (PCDH11X or PCDHX), a recently described gene expressed in brain. In humans, PCDH11X has a homologue on the Y chromosome and is predicted to escape from X-inactivation. Employing bisulphite sequencing analysis we found absence of CpG island methylation on both the active and the inactive X chromosomes, providing a strong indication that PCDH11X escapes inactivation in humans. Furthermore, a sexual dimorphism in levels of expression in brain tissue was observed by quantitative real-time PCR, with females presenting an up to 2-fold excess in the abundance of PCDH11X transcripts. We relate these findings to sexually dimorphic traits in the human brain. Interestingly, PCDH11X/Y gene pair is unique to Homo sapiens, since the X-linked gene was transposed to the Y chromosome after the human-chimpanzee lineages split. Although no differences in promoter methylation were found between humans and chimpanzees, evidence of an upregulation of PCDH11X in humans deserves further investigation.

Indexed as

Dosage Compensation, GeneticSex CharacteristicsAnimalsBrainCadherinsDNA MethylationFemaleGene Expression RegulationHumansMalePan troglodytesProtocadherinsReverse Transcriptase Polymerase Chain ReactionCadherinsPCDH11X protein, humanProtocadherins

Identifiers

PMID16425037
OpenAlexW2059337871

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.