rs142137451

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001148.6(ANK2):​c.8240G>A​(p.Arg2747His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00028 in 1,614,012 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 5 hom. )

Consequence

ANK2
NM_001148.6 missense

Scores

1
18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.300
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0030204654).
BP6
Variant 4-113356858-G-A is Benign according to our data. Variant chr4-113356858-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 379341.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000355 (54/152282) while in subpopulation EAS AF= 0.00579 (30/5180). AF 95% confidence interval is 0.00417. There are 0 homozygotes in gnomad4. There are 27 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 54 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ANK2NM_001148.6 linkc.8240G>A p.Arg2747His missense_variant Exon 38 of 46 ENST00000357077.9 NP_001139.3 Q01484-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ANK2ENST00000357077.9 linkc.8240G>A p.Arg2747His missense_variant Exon 38 of 46 1 NM_001148.6 ENSP00000349588.4 Q01484-4

Frequencies

GnomAD3 genomes
AF:
0.000355
AC:
54
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00578
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000578
AC:
144
AN:
249040
Hom.:
1
AF XY:
0.000512
AC XY:
69
AN XY:
134718
show subpopulations
Gnomad AFR exome
AF:
0.000434
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00714
Gnomad SAS exome
AF:
0.0000981
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000272
AC:
398
AN:
1461730
Hom.:
5
Cov.:
35
AF XY:
0.000257
AC XY:
187
AN XY:
727174
show subpopulations
Gnomad4 AFR exome
AF:
0.000418
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00839
Gnomad4 SAS exome
AF:
0.000151
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000355
AC:
54
AN:
152282
Hom.:
0
Cov.:
32
AF XY:
0.000363
AC XY:
27
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00579
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000324
Hom.:
0
Bravo
AF:
0.000423
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000577
AC:
70
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Cardiac arrhythmia, ankyrin-B-related Benign:2
Sep 26, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Dec 05, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiomyopathy Benign:1
Jan 31, 2019
Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
Jul 30, 2019
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 30662066, 30109564, 25351510) -

Long QT syndrome Benign:1
Jan 12, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
Jun 09, 2022
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
14
DANN
Benign
0.96
DEOGEN2
Benign
0.26
T;T;.
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.063
N
LIST_S2
Benign
0.61
T;T;T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.0030
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N;.;.
PrimateAI
Benign
0.21
T
PROVEAN
Benign
0.43
N;N;.
REVEL
Benign
0.029
Sift
Uncertain
0.010
D;D;.
Sift4G
Benign
0.28
T;T;T
Vest4
0.089
MVP
0.29
MPC
0.14
ClinPred
0.012
T
GERP RS
3.4
Varity_R
0.037
gMVP
0.034

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs142137451; hg19: chr4-114278014; API