rs572309510
Variant summary
Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP6_Very_StrongBS1
The NM_024422.6(DSC2):c.70-11delT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0002 in 1,536,834 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_024422.6 intron
Scores
Clinical Significance
Conservation
Publications
- familial isolated arrhythmogenic right ventricular dysplasiaInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- arrhythmogenic right ventricular dysplasia 11Inheritance: AR, AD, SD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
- colorectal adenomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Benign. The variant received -12 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| DSC2 | NM_024422.6 | c.70-11delT | intron_variant | Intron 1 of 15 | ENST00000280904.11 | NP_077740.1 | ||
| DSC2 | NM_004949.5 | c.70-11delT | intron_variant | Intron 1 of 16 | NP_004940.1 | |||
| DSC2 | NM_001406506.1 | c.-360-11delT | intron_variant | Intron 1 of 15 | NP_001393435.1 | |||
| DSC2 | NM_001406507.1 | c.-360-11delT | intron_variant | Intron 1 of 16 | NP_001393436.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| DSC2 | ENST00000280904.11 | c.70-11delT | intron_variant | Intron 1 of 15 | 1 | NM_024422.6 | ENSP00000280904.6 |
Frequencies
GnomAD3 genomes AF: 0.000612 AC: 91AN: 148670Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000344 AC: 82AN: 238322 AF XY: 0.000301 show subpopulations
GnomAD4 exome AF: 0.000157 AC: 218AN: 1388062Hom.: 0 Cov.: 25 AF XY: 0.000158 AC XY: 109AN XY: 690538 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000605 AC: 90AN: 148772Hom.: 0 Cov.: 32 AF XY: 0.000552 AC XY: 40AN XY: 72484 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:5
70-11delT in intron 1 of DSC2: This variant is not expected to have clinical sig nificance because it is located outside the conserved +/- 1, 2 region of the spl icing consensus sequence and as part of a polyT stretch. It does not alter the r egion of interest (ROI).
Variant summary: DSC2 c.70-11delT alters a non-conserved nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.00034 in 238322 control chromosomes, predominantly at a frequency of 0.0024 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 96 fold of the estimated maximal expected allele frequency for a pathogenic variant in DSC2 causing Cardiomyopathy phenotype (2.5e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.70-11delT in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign.
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Arrhythmogenic right ventricular dysplasia 11 Benign:2
Cardiomyopathy Benign:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at