Evidence map›Paper›PMID 22120146›Full record

ArticleBrain : a journal of neurology2011

Identification of PRRT2 as the causative gene of paroxysmal kinesigenic dyskinesias.

Jun-Ling Wang, Li Cao, Xun-Hua Li, Zheng-Mao Hu, Jia-Da Li, Jian-Guo Zhang, Yu Liang, San-A, Nan Li, Su-Qin Chen and 14 more

Open access · bronzeAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 1 pooled it
23.4field-weighted citation impact, top 1% 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

117 citing papers in PubMed, 1 synthesis or guideline pooled it, 289 citations in OpenAlex.

  1. Episodic Ataxias: Primary and Secondary Etiologies, Treatment, and Classification Approaches.Tremor and other hyperkinetic movements (New York, N.Y.) · 2023
    Pooled it
  2. Trial
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  5. Review
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  8. Review
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  10. Article
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  12. Article
  13. Article
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  16. Article
  17. Epilepsy & behavior reports · 2022
    Article
  18. Screening of theFrontiers in neurology · 2022
    Article
  19. Mosaic ring chromosome 18 in a Chinese child with epilepsy: a case report and review of the literature.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Review
  20. Article

57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

24 authors at 5 institutions in 1 country.

Jun-Ling WangDepartment of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, 410008, China.
Li Cao
Xun-Hua Li
Zheng-Mao Hu
Jia-Da Li
Jian-Guo Zhang
Yu Liang
San-A
Nan Li
Su-Qin Chen
Ji-Feng Guo
Hong Jiang
Lu Shen
Lan Zheng
Xiao Mao
Wei-Qian Yan
Ying Zhou
Yu-Ting Shi
San-Xi Ai
Mei-Zhi Dai
Peng Zhang
Kun Xia
Sheng-Di Chen
Bei-Sha Tang
Central South University · CNBGI Group (China) · CNChangsha Medical University · CNSun Yat-sen University · CNShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Paroxysmal kinesigenic dyskinesias is a paroxysmal movement disorder characterized by recurrent, brief attacks of abnormal involuntary movements induced by sudden voluntary movements. Although several loci, including the pericentromeric region of chromosome 16, have been linked to paroxysmal kinesigenic dyskinesias, the causative gene has not yet been identified. Here, we identified proline-rich transmembrane protein 2 (PRRT2) as a causative gene of paroxysmal kinesigenic dyskinesias by using a combination of exome sequencing and linkage analysis. Genetic linkage mapping with 11 markers that encompassed the pericentromeric of chromosome 16 was performed in 27 members of two families with autosomal dominant paroxysmal kinesigenic dyskinesias. Then, the whole-exome sequencing was performed in three patients from these two families. By combining the defined linkage region (16p12.1-q12.1) and the results of exome sequencing, we identified an insertion mutation c.649_650InsC (p.P217fsX7) in one family and a nonsense mutation c.487C>T (p.Q163X) in another family. To confirm our findings, we sequenced the exons and flanking introns of PRRT2 in another three families with paroxysmal kinesigenic dyskinesias. The c.649_650InsC (p.P217fsX7) mutation was identified in two of these families, whereas a missense mutation, c.796C>T (R266W), was identified in another family with paroxysmal kinesigenic dyskinesias. All of these mutations completely co-segregated with the phenotype in each family. None of these mutations was identified in 500 normal unaffected individuals of matched geographical ancestry. Thus, we have identified PRRT2 as the first causative gene of paroxysmal kinesigenic dyskinesias, warranting further investigations to understand the pathogenesis of this disorder.

Indexed as

AdolescentAdultAgedChildChoreaChromosome MappingFemaleGenetic Association StudiesGenetic LinkageGenetic LociGenotypeHaplotypesHumansMaleMembrane ProteinsMiddle AgedMembrane ProteinsNerve Tissue ProteinsPRRT2 protein, human

Identifiers

PMID22120146
PMCPMC3235563
OpenAlexW2150377483

What OpenQuestion holds

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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.