rs752941845
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6
The NM_004415.4(DSP):c.479G>A(p.Arg160Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000744 in 1,613,832 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R160G) has been classified as Likely benign.
Frequency
Consequence
NM_004415.4 missense
Scores
Clinical Significance
Conservation
Publications
- arrhythmogenic right ventricular dysplasia 8Inheritance: AD, AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
- keratosis palmoplantaris striata 2Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Ambry Genetics, Genomics England PanelApp
- skin fragility-woolly hair-palmoplantar keratoderma syndromeInheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, G2P, Genomics England PanelApp, Ambry Genetics
- arrhythmogenic cardiomyopathy with wooly hair and keratodermaInheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, ClinGen, Orphanet, Ambry Genetics
- cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesisInheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
- lethal acantholytic epidermolysis bullosaInheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- striate palmoplantar keratodermaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- severe dermatitis-multiple allergies-metabolic wasting syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- hypertrophic cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
Genome browser will be placed here
ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| DSP | NM_004415.4 | c.479G>A | p.Arg160Gln | missense_variant | Exon 4 of 24 | ENST00000379802.8 | NP_004406.2 | |
| DSP | NM_001319034.2 | c.479G>A | p.Arg160Gln | missense_variant | Exon 4 of 24 | NP_001305963.1 | ||
| DSP | NM_001008844.3 | c.479G>A | p.Arg160Gln | missense_variant | Exon 4 of 24 | NP_001008844.1 | ||
| DSP | NM_001406591.1 | c.479G>A | p.Arg160Gln | missense_variant | Exon 4 of 11 | NP_001393520.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152120Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000318 AC: 8AN: 251198 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461712Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5AN XY: 727152 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152120Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74318 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
A variant of uncertain significance has been identified in the DSP gene. The R160Q variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. This variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The R160Q variant is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. This substitution occurs at a position that is conserved across species. In silico analysis suggests that this variant is probably damaging to the protein structure/function. -
Arrhythmogenic cardiomyopathy with wooly hair and keratoderma Uncertain:1
This missense variant replaces arginine with glutamine at codon 160 of the DSP protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 9/282594 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Cardiomyopathy Uncertain:1
This missense variant replaces arginine with glutamine at codon 160 of the DSP protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 9/282594 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Ventricular tachycardia Uncertain:1
- -
Arrhythmogenic right ventricular dysplasia 8;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma Benign:1
- -
Cardiovascular phenotype Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at