rs771826064
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM1BS2
The NM_001148.6(ANK2):c.7546A>C(p.Ser2516Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,886 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_001148.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152046Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000399 AC: 1AN: 250710Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135464
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1461840Hom.: 0 Cov.: 35 AF XY: 0.0000110 AC XY: 8AN XY: 727222
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152046Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74262
ClinVar
Submissions by phenotype
Long QT syndrome Uncertain:1
This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 2516 of the ANK2 protein (p.Ser2516Arg). This variant is present in population databases (no rsID available, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with ANK2-related conditions. ClinVar contains an entry for this variant (Variation ID: 347331). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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.S2516R variant (also known as c.7546A>C), located in coding exon 38 of the ANK2 gene, results from an A to C substitution at nucleotide position 7546. The serine at codon 2516 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
Cardiac arrhythmia, ankyrin-B-related 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at