Evidence map›Paper›PMID 19461874›Full record

ArticlePLoS genetics2009

CA8 mutations cause a novel syndrome characterized by ataxia and mild mental retardation with predisposition to quadrupedal gait.

Seval Türkmen, Gao Guo, Masoud Garshasbi, Katrin Hoffmann, Amjad J Alshalah, Claudia Mischung, Andreas Kuss, Nicholas Humphrey, Stefan Mundlos, Peter N Robinson

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

83 citing papers in PubMed, 1 synthesis or guideline pooled it, 154 citations in OpenAlex.

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23 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

10 authors at 5 institutions in 4 countries.

Seval TürkmenInstitute for Medical Genetics, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Gao Guo
Masoud Garshasbi
Katrin Hoffmann
Amjad J Alshalah
Claudia Mischung
Andreas Kuss
Nicholas Humphrey
Stefan Mundlos
Peter N Robinson
Charité - Universitätsmedizin Berlin · DEBerlin-Brandenburger Centrum für Regenerative Therapien · DEMax Planck Institute for Molecular Genetics · DELondon School of Economics and Political Science · GBUniversity of Babylon · IQ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe a consanguineous Iraqi family in which affected siblings had mild mental retardation and congenital ataxia characterized by quadrupedal gait. Genome-wide linkage analysis identified a 5.8 Mb interval on chromosome 8q with shared homozygosity among the affected persons. Sequencing of genes contained in the interval revealed a homozygous mutation, S100P, in carbonic anhydrase related protein 8 (CA8), which is highly expressed in cerebellar Purkinje cells and influences inositol triphosphate (ITP) binding to its receptor ITPR1 on the endoplasmatic reticulum and thereby modulates calcium signaling. We demonstrate that the mutation S100P is associated with proteasome-mediated degradation, and thus presumably represents a null mutation comparable to the Ca8 mutation underlying the previously described waddles mouse, which exhibits ataxia and appendicular dystonia. CA8 thus represents the third locus that has been associated with quadrupedal gait in humans, in addition to the VLDLR locus and a locus at chromosome 17p. Our findings underline the importance of ITP-mediated signaling in cerebellar function and provide suggestive evidence that congenital ataxia paired with cerebral dysfunction may, together with unknown contextual factors during development, predispose to quadrupedal gait in humans.

Indexed as

Mutation, MissenseAtaxiaBase SequenceBiomarkers, TumorCarbonic AnhydrasesCerebellar AtaxiaConsanguinityDNA PrimersEnzyme StabilityFemaleGait AtaxiaGait Disorders, NeurologicHaplotypesHomozygoteHumansInositol 1,4,5-TrisphosphateBiomarkers, TumorCA8 protein, humanCarbonic AnhydrasesDNA PrimersInositol 1,4,5-TrisphosphateInositol 1,4,5-Trisphosphate ReceptorsIntracellular Signaling Peptides and Proteins

Identifiers

PMID19461874
PMCPMC2677160
OpenAlexW2051255378

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Read underepoch 390

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.