rs374486076
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_014391.3(ANKRD1):c.821A>G(p.Tyr274Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,613,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_014391.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ANKRD1 | NM_014391.3 | c.821A>G | p.Tyr274Cys | missense_variant | Exon 8 of 9 | ENST00000371697.4 | NP_055206.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152156Hom.: 0 Cov.: 30
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251078Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135686
GnomAD4 exome AF: 0.0000246 AC: 36AN: 1461592Hom.: 0 Cov.: 32 AF XY: 0.0000206 AC XY: 15AN XY: 727100
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152156Hom.: 0 Cov.: 30 AF XY: 0.0000538 AC XY: 4AN XY: 74320
ClinVar
Submissions by phenotype
not provided Uncertain:2
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Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function -
ANKRD1-related dilated cardiomyopathy Uncertain:1
This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 274 of the ANKRD1 protein (p.Tyr274Cys). This variant is present in population databases (rs374486076, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with ANKRD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 191602). 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 ANKRD1 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. -
Primary dilated cardiomyopathy Uncertain: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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Cardiovascular phenotype Uncertain:1
The p.Y274C variant (also known as c.821A>G), located in coding exon 8 of the ANKRD1 gene, results from an A to G substitution at nucleotide position 821. The tyrosine at codon 274 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at