Evidence map›Paper›PMID 18179896›Full record

ArticleAmerican journal of human genetics2008

Mutations in KCNJ13 cause autosomal-dominant snowflake vitreoretinal degeneration.

J Fielding Hejtmancik, Xiaodong Jiao, Anren Li, Yuri V Sergeev, Xiaoyan Ding, Anil K Sharma, Chi-Chao Chan, Igor Medina, Albert O Edwards

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

60 citing papers in PubMed, 113 citations in OpenAlex.

  1. Article
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  4. Article
  5. Article
  6. Article
  7. Precision therapeutic tRNA rescue of nonsense mutation R166X inJournal of precision medicine (Amsterdam, Netherlands) · 2025
    Article
  8. Review
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  11. Review
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  13. Article
  14. Article
  15. KAmerican journal of physiology. Renal physiology · 2023
    Article
  16. Review
  17. Protective effects of α-terpineol andFrontiers in veterinary science · 2023
    Article
  18. Inward rectifier potassium (Kir) channels in the retina: living our vision.American journal of physiology. Cell physiology · 2022
    Review
  19. Editorial: Genetic features contributing to eye development and disease.Frontiers in cell and developmental biology · 2022
    Article
  20. 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

9 authors at 3 institutions in 3 countries.

J Fielding HejtmancikOphthalmic Genetics and Visual Function Branch, National Eye Institute, NIH, Bethesda, MD 20892, USA. f3h@helix.nih.gov
Xiaodong Jiao
Anren Li
Yuri V Sergeev
Xiaoyan Ding
Anil K Sharma
Chi-Chao Chan
Igor Medina
Albert O Edwards
National Eye Institute · USMayo Clinic · USInserm · FR

Funding

Inherited Ocular DiseasesZIAEY000272 · NEI · NATIONAL EYE INSTITUTE · PI HEJTMANCIK, JAMES F. · 2009 to 2025
$27.0M
Clinical/molecular Studies In Families With Congenital Or Hereditary CataractsZIAEY000281 · NEI · NATIONAL EYE INSTITUTE · PI HEJTMANCIK, JAMES F. · 2009 to 2025
$18.1M
Proteins From Hereditary Eye Diseases: In-silico and Experimental StudiesZIAEY000476 · NEI · NATIONAL EYE INSTITUTE · PI SERGEEV, YURI · 2009 to 2025
$16.8M
Histopathology CoreZICEY000461 · NEI · NATIONAL EYE INSTITUTE · PI SCHNEEWEIS, DAVID · 2009 to 2022
$7.7M
Molecular And Immunopathology Of Experimental And Clinical Ocular DiseasesZIAEY000222 · NEI · NATIONAL EYE INSTITUTE · PI CHAN, CHI-CHAO · 2009 to 2015
$7.2M
INHERITED OCULAR DISEASESZ01EY000272 · NEI · NATIONAL EYE INSTITUTE · PI HEJTMANCIK, JAMES F. · 1991 to 2008
$4.8M
Molecular And Immunopathology Of Ocular DiseasesZ01EY000222 · NEI · NATIONAL EYE INSTITUTE · PI CHAN, CHI-CHAO · 1986 to 2008
$3.6M
Genetics of macular degenerationR01EY014467 · NEI · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI EDWARDS, ALBERT O · 2003 to 2007
$2.5M
Clinical/molecular Study In Congenital/Heredity CataractZ01EY000281 · NEI · NATIONAL EYE INSTITUTE · PI HEJTMANCIK, JAMES F. · 1993 to 2008
$1.8M
Histology CoreZ01EY000461 · NEI · NATIONAL EYE INSTITUTE · PI CHAN, CHI-CHAO · 2008 to 2008
$416k
NEI NIH HHS EY014467NEI NIH HHS R01 EY014467
6 · The paper itself

Abstract

Snowflake vitreoretinal degeneration (SVD, MIM 193230) is a developmental and progressive hereditary eye disorder that affects multiple tissues within the eye. Diagnostic features of SVD include fibrillar degeneration of the vitreous humor, early-onset cataract, minute crystalline deposits in the neurosensory retina, and retinal detachment. A genome-wide scan previously localized the genetic locus for SVD to a 20 Mb region flanked by D2S2158 and D2S2202. This region contains 59 genes, of which 20 were sequenced, disclosing a heterozygous mutation (484C > T, R162W) in KCNJ13, member 13 of subfamily J of the potassium inwardly rectifying channel family in all affected individuals. The mutation in KCNJ13, the gene encoding Kir7.1, was not present in unaffected family members and 210 control individuals. Kir7.1 localized to human retina and retinal pigment epithelium and was especially prevalent in the internal limiting membrane adjacent to the vitreous body. Molecular modeling of this mutation predicted disruption of the structure of the potassium channel in the closed state located immediately adjacent to the cell-membrane inner boundary. Functionally, unlike wild-type Kir7.1 whose overexpression in CHO-K1 cells line produces highly selective potassium current, overexpression of R162W mutant Kir7.1 produces a nonselective cation current that depolarizes transfected cells and increases their fragility. These results indicate that the KCNJ13 R162W mutation can cause SVD and further show that vitreoretinal degeneration can arise through mutations in genes whose products are not structural components of the vitreous.

Indexed as

Mutation, MissenseAmino Acid SequenceAnimalsCHO CellsCricetinaeCricetulusEye Diseases, HereditaryGenes, DominantHumansMolecular Sequence DataPotassium Channels, Inwardly RectifyingRetinal DegenerationSequence AlignmentTransfectionVitreous BodyKir7.1 channelPotassium Channels, Inwardly Rectifying

Identifiers

PMID18179896
PMCPMC2253967
OpenAlexW2057657886

What OpenQuestion holds

Textmetadata
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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.