4-113049747-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001148.6(ANK2):​c.19G>A​(p.Ala7Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Consequence

ANK2
NM_001148.6 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.46
Variant links:
Genes affected
ANK2 (HGNC:493): (ankyrin 2) This gene encodes a member of the ankyrin family of proteins that link the integral membrane proteins to the underlying spectrin-actin cytoskeleton. Ankyrins play key roles in activities such as cell motility, activation, proliferation, contact and the maintenance of specialized membrane domains. Most ankyrins are typically composed of three structural domains: an amino-terminal domain containing multiple ankyrin repeats; a central region with a highly conserved spectrin binding domain; and a carboxy-terminal regulatory domain which is the least conserved and subject to variation. The protein encoded by this gene is required for targeting and stability of Na/Ca exchanger 1 in cardiomyocytes. Mutations in this gene cause long QT syndrome 4 and cardiac arrhythmia syndrome. Multiple transcript variants encoding different isoforms have been described. [provided by RefSeq, Dec 2011]
ANK2-AS1 (HGNC:40076): (ANK2 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.287946).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ANK2NM_001148.6 linkc.19G>A p.Ala7Thr missense_variant 1/46 ENST00000357077.9 NP_001139.3 Q01484-4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ANK2ENST00000357077.9 linkc.19G>A p.Ala7Thr missense_variant 1/461 NM_001148.6 ENSP00000349588.4 Q01484-4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
35
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 27, 2024The p.A7T variant (also known as c.19G>A), located in coding exon 1 of the ANK2 gene, results from a G to A substitution at nucleotide position 19. The alanine at codon 7 is replaced by threonine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.0038
T
BayesDel_noAF
Benign
-0.24
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T;.;T;T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Uncertain
0.87
D;D;D;D
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.29
T;T;T;T
MetaSVM
Benign
-0.29
T
MutationAssessor
Benign
0.0
.;N;N;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.84
N;N;N;N
REVEL
Benign
0.18
Sift
Benign
0.031
D;D;D;D
Sift4G
Benign
0.36
T;T;T;T
Polyphen
1.0, 1.0
.;D;D;.
Vest4
0.37, 0.48, 0.45
MutPred
0.19
Gain of glycosylation at S12 (P = 0.0036);Gain of glycosylation at S12 (P = 0.0036);Gain of glycosylation at S12 (P = 0.0036);Gain of glycosylation at S12 (P = 0.0036);
MVP
0.67
MPC
0.92
ClinPred
0.72
D
GERP RS
5.3
Varity_R
0.17
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-113970903; API