rs760731007
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP2BP4_ModerateBP6BS1
The NM_022336.4(EDAR):c.68C>T(p.Ser23Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000113 in 1,614,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_022336.4 missense
Scores
Clinical Significance
Conservation
Publications
- familial acute necrotizing encephalopathyInheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
- Leigh syndromeInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| EDAR | NM_022336.4 | c.68C>T | p.Ser23Leu | missense_variant | Exon 3 of 12 | ENST00000258443.7 | NP_071731.1 | |
| EDAR | XM_006712204.2 | c.68C>T | p.Ser23Leu | missense_variant | Exon 3 of 11 | XP_006712267.1 | ||
| RANBP2 | XM_047445367.1 | c.8370+157180G>A | intron_variant | Intron 24 of 24 | XP_047301323.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| EDAR | ENST00000258443.7 | c.68C>T | p.Ser23Leu | missense_variant | Exon 3 of 12 | 1 | NM_022336.4 | ENSP00000258443.2 | ||
| EDAR | ENST00000376651.1 | c.68C>T | p.Ser23Leu | missense_variant | Exon 3 of 11 | 2 | ENSP00000365839.1 | |||
| EDAR | ENST00000409271.5 | c.68C>T | p.Ser23Leu | missense_variant | Exon 4 of 12 | 2 | ENSP00000386371.1 |
Frequencies
GnomAD3 genomes AF: 0.000131 AC: 20AN: 152172Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000211 AC: 53AN: 251350 AF XY: 0.000155 show subpopulations
GnomAD4 exome AF: 0.000111 AC: 162AN: 1461798Hom.: 0 Cov.: 31 AF XY: 0.0000880 AC XY: 64AN XY: 727208 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000138 AC: 21AN: 152290Hom.: 0 Cov.: 32 AF XY: 0.000175 AC XY: 13AN XY: 74462 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
EDAR-related disorder Uncertain:1
The EDAR c.68C>T variant is predicted to result in the amino acid substitution p.Ser23Leu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.11% of alleles in individuals of Latino descent in gnomAD. Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Inborn genetic diseases Uncertain:1
The c.68C>T (p.S23L) alteration is located in exon 3 (coding exon 2) of the EDAR gene. This alteration results from a C to T substitution at nucleotide position 68, causing the serine (S) at amino acid position 23 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Hypohidrotic Ectodermal Dysplasia, Dominant Uncertain:1
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Autosomal recessive hypohidrotic ectodermal dysplasia syndrome;C3888065:Ectodermal dysplasia 10A, hypohidrotic/hair/nail type, autosomal dominant Uncertain:1
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 23 of the EDAR protein (p.Ser23Leu). This variant is present in population databases (rs760731007, gnomAD 0.1%). This missense change has been observed in individual(s) with clinical features of EDAR-related conditions (Invitae). ClinVar contains an entry for this variant (Variation ID: 330712). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt EDAR protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Hypohidrotic ectodermal dysplasia Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at