rs914206942
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2
The NM_014391.3(ANKRD1):c.523G>A(p.Ala175Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,613,924 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A175G) has been classified as Uncertain significance.
Frequency
Consequence
NM_014391.3 missense
Scores
Clinical Significance
Conservation
Publications
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- dilated cardiomyopathyInheritance: AD Classification: LIMITED Submitted by: ClinGen
- hypertrophic cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ANKRD1 | NM_014391.3 | c.523G>A | p.Ala175Thr | missense_variant | Exon 5 of 9 | ENST00000371697.4 | NP_055206.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152198Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.0000513 AC: 75AN: 1461726Hom.: 0 Cov.: 30 AF XY: 0.0000371 AC XY: 27AN XY: 727172 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152198Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74346 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Cardiomyopathy Uncertain:1
Based on the classification scheme VCGS_Germline_v1.1.1, this variant is classified as 3C-VUS. Following criteria are met: 0105 - The mechanism of disease for this gene is not clearly established. (N) 0107 - This gene is known to be associated with autosomal dominant disease (PMID: 19608030; PMID: 19608031). (N) 0200 - Variant is predicted to result in a missense amino acid change from alanine to threonine (exon 5). (N) 0251 - Variant is heterozygous. (N) 0302 - Variant is present in gnomAD <0.001 for a dominant condition (2 heterozygous, 0 homozygous; version 3). (P) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (4 heterozygous, 0 homozygous; version 3). (N) 0503 - Missense variant consistently predicted to be tolerated and not conserved in mammals with a minor amino acid change. (B) 0600 - Variant is located in an annotated domain or motif (ankyrin domain; NCBI, Decipher, PDB). (N) 0705 - No comparable variants have previous evidence for pathogenicity. (N) 0807 - Variant has not previously been reported in a clinical context. (N) 0905 - No segregation evidence has been identified for this variant. (N) 1007 - No published functional evidence has been identified for this variant. (N) 1208 - Inheritance information for this variant is not currently available. (N) Legend: (P) - Pathogenic, (N) - Neutral, (B) - Benign -
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
ANKRD1-related dilated cardiomyopathy Uncertain:1
This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 175 of the ANKRD1 protein (p.Ala175Thr). This variant is not present in population databases (gnomAD no frequency). 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: 477610). 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 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. -
Cardiovascular phenotype Uncertain:1
The p.A175T variant (also known as c.523G>A), located in coding exon 5 of the ANKRD1 gene, results from a G to A substitution at nucleotide position 523. The alanine at codon 175 is replaced by threonine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at