NM_001399.5:c.467G>A
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM2PM5PP3_StrongPP5_Very_Strong
The NM_001399.5(EDA):c.467G>A(p.Arg156His) variant causes a missense change. The variant allele was found at a frequency of 0.00000165 in 1,209,437 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R156G) has been classified as Likely pathogenic.
Frequency
Consequence
NM_001399.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000890 AC: 1AN: 112401Hom.: 0 Cov.: 23 AF XY: 0.00 AC XY: 0AN XY: 34579
GnomAD4 exome AF: 9.12e-7 AC: 1AN: 1097036Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0AN XY: 362430
GnomAD4 genome AF: 0.00000890 AC: 1AN: 112401Hom.: 0 Cov.: 23 AF XY: 0.00 AC XY: 0AN XY: 34579
ClinVar
Submissions by phenotype
Hypohidrotic X-linked ectodermal dysplasia Pathogenic:3
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 156 of the EDA protein (p.Arg156His). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with hypohidrotic ectodermal dysplasia (PMID: 9683615, 11279189, 11295832, 11416205, 18231121). In at least one individual the variant was observed to be de novo. This variant is also known as c.708G>A (p.R156H). ClinVar contains an entry for this variant (Variation ID: 11037). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt EDA protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects EDA function (PMID: 11416205). This variant disrupts the p.Arg156 amino acid residue in EDA. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 9683615, 11279189, 11416205). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -
The Arg156His variant in EDA has been reported in at least 18 individuals with X -linked hypohidrotic ectodermal dysplasia (Schneider 2001, Monreal 1998, Schneid er 2011, Vincent 2001, Zhao 2008). This variant was reported as de novo in at le ast 4 individuals with de novo disease and was reported in an individual with a family history of X-linked hypohidrotic ectodermal dysplasia (Schneider 2001, Vi ncent 2001). Furthermore, functional studies have shown that the change to Histi dine (His) at position 156 affects protein cleavage (Chen 2001, Elomaa 2001). In summary, this variant meets our criteria to be classified as pathogenic. -
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Hypohidrotic X-linked ectodermal dysplasia;C1970757:Tooth agenesis, selective, X-linked, 1 Pathogenic:1
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not provided Pathogenic:1
Published functional studies demonstrate a damaging effect due to a drastic reduction in the cleavage of ectodysplasin-A as compared to wild-type, preventing the generation of a soluble ectodysplasin-A ligand (Chen et al., 2001); Not observed at significant frequency in large population cohorts (gnomAD); Missense variants in this gene are often considered pathogenic (HGMD); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 26273176, 23744313, 26411740, 11416205, 27305980, 26345974, 18231121, 11295832, 11309369, 18076698, 9683615, 11279189, 11378824, 28981473, 21357618, 34426522, 32690319, 32176048, 31924237, 29220840, 31796081, 34863015, 25333067, 17686277, 26502894, 18666859) -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at