Evidence map›Paper›PMID 19241098›Full record

ArticleNeurogenetics2009

Novel mutations in the CDKL5 gene, predicted effects and associated phenotypes.

S Russo, M Marchi, F Cogliati, M T Bonati, M Pintaudi, E Veneselli, V Saletti, M Balestrini, B Ben-Zeev, L Larizza

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In one paragraph

Article in Neurogenetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
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  17. High frequency of mosaic pathogenic variants in genes causing epilepsy-related neurodevelopmental disorders.Genetics in medicine : official journal of the American College of Medical Genetics · 2018
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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 4 institutions in 2 countries.

S RussoMolecular Genetics Laboratory, Istituto Auxologico Italiano, Via Zucchi 18-20095 Cusano Milanino (MI), Milan, Italy. s.russo@auxologico.it
M Marchi
F Cogliati
M T Bonati
M Pintaudi
E Veneselli
V Saletti
M Balestrini
B Ben-Zeev
L Larizza
IRCCS Istituto Auxologico Italiano · ITFondazione IRCCS Istituto Neurologico Carlo Besta · ITUniversity of Genoa · ITSheba Medical Center · IL

Funding

Telethon GTB07001
6 · The paper itself

Abstract

It has been found that CDKL5 gene mutations are responsible for early-onset epilepsy and drug resistance. We screened a population of 92 patients with classic/atypical Rett syndrome, 17 Angelman/Angelman-like patients and six idiopathic autistic patients for CDKL5 mutations and exon deletions and identified seven novel mutations: six in the Rett subset and one in an Angelman patient. This last, an insertion in exon 11, c.903_904 dupGA, p.Leu302Aspfx49X, is associated with a relatively mild clinical presentation as the patient is the only one capable of sitting and walking alone. Of the six mutations, two are de novo missense changes affecting highly conserved aminoacid residues, c.215 T > C p.Ile72Thr and c.380A > G p.His127Arg (present in a mosaic condition) found in two girls with the most severe clinical presentation, while the remaining are the splicing c.145 + 2 T > C and c.2376 + 5G > A, the c.1648C > T p.Arg550X and the MPLA-identified c.162_99del261 mutation. RNA characterisation of four mutations revealed the aberrant transcript of the missense allele (case 2) and not the stop mutation (case 3), but also allowed the splicing mutation (case 1) and the c.-162_99del261 (case 4) to be categorised as truncating. The obtained data reinforce the view that a more severe phenotype is due more to an altered protein than haploinsufficiency. Furthermore, the mutational repertoire of the CDKL5 gene is shown to be expanded by testing patients with phenotypical overlap to Rett syndrome and applying multiplex ligation-dependent probe amplification.

Indexed as

MutationPhenotypeAge of OnsetAngelman SyndromeAutistic DisorderBase SequenceChildChild, PreschoolChromosome MappingDNA Mutational AnalysisFemaleHumansInfantMaleMolecular Sequence DataProtein Serine-Threonine KinasesCDKL5 protein, humanProtein Serine-Threonine Kinases

Identifiers

PMID19241098
OpenAlexW2166030842

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.