Evidence map›Paper›PMID 21921990›Full record

ArticleMolecular vision2011

Another evidence for a D47N mutation in GJA8 associated with autosomal dominant congenital cataract.

Li Wang, Yi Luo, Wen Wen, Shenghai Zhang, Yi Lu

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Detection of c.139G>A (D47N) mutation inJournal of genetics · 2018
    Article
  4. Article
  5. Review
  6. Article
  7. Exome sequencing identifies a novel mutation in GJA8 associated with inherited cataract in a Chinese family.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2017
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Connexin mutants and cataracts.Frontiers in pharmacology · 2013
    Article
  13. Article
  14. Identification of a Missense Mutation inJournal of current ophthalmology
    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

5 authors at 1 institution in 1 country.

Li WangDepartment of Ophthalmology, Eye and ENT hospital of Fudan University, Shanghai, China.
Yi Luo
Wen Wen
Shenghai Zhang
Yi Lu
Eye & ENT Hospital of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo identify the pathogenic gene mutation in a Chinese family with autosomal dominant inherited nuclear cataract.

methodsAfter obtained informed consent, detailed ophthalmic examinations were performed, genomic DNAs were obtained from eighteen family members in a four-generation Chinese family with five affected. All exons of candidate genes were amplified by polymerase chain reaction (PCR) and were sequenced performed by bidirectional sequencing. The stability of mutation was predicted with Prediction of Protein Mutant Stability changes (PoPMuSiC). The structure homology modeling of the mutant protein was based on Swiss-Model Serve, and its structure was displayed and compared with human connexin26 using the RasMol software.

resultsBy sequencing the encoding regions of the candidate genes, a missence mutation (c.139G>A) was detected in gap junction protein alpha 8 (GJA8) gene, which resulted in the substitution of highly conserved aspartic acid by asparagine at codon 47 (p.D47N). The mutation co-segregated with all patients and was absent in 100 normal Chinese controls. PoPMuSiC analysis showed the change in folding free energy upon mutation (ΔΔG) is 0.31 kcal/mol and the mutation p.D47N is destabilizing. The homology modeling showed that the structure of the mutant protein was different with that of human connexin26.

conclusionsThe study identified a missence mutation (c.139G>A) in GJA8 gene associated with autosomal dominant congenital cataract in a Chinese family. It gave further evidence for GJA8 associated with congenital cataract.

Indexed as

Asian PeopleAsparagineAspartic AcidCase-Control StudiesCataractConnexin 26Connexin 50ConnexinsDNA Mutational AnalysisExonsEye ProteinsFemaleGenes, DominantGenetic LinkageHumansMaleAsparagineAspartic AcidConnexin 26Connexin 50ConnexinsEye ProteinsGJB2 protein, humanMutant Proteins

Identifiers

PMID21921990
PMCPMC3171490
OpenAlexW1573871709

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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.