rs149645600

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001148.6(ANK2):​c.6206G>A​(p.Arg2069His) variant causes a missense change. The variant allele was found at a frequency of 0.00106 in 1,614,144 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2069C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0011 ( 3 hom. )

Consequence

ANK2
NM_001148.6 missense

Scores

5
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:11

Conservation

PhyloP100: 4.38

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: Ambry Genetics, ClinGen
  • Brugada syndrome
    Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Genomics England PanelApp, ClinGen
  • catecholaminergic polymorphic ventricular tachycardia
    Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: ClinGen, Genomics England PanelApp
  • heart conduction disease
    Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp
  • neurodevelopmental disorder
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • cardiac arrhythmia, ankyrin-B-related
    Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • long QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.016016811).
BP6
Variant 4-113354824-G-A is Benign according to our data. Variant chr4-113354824-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 180270.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000663 (101/152326) while in subpopulation NFE AF = 0.00121 (82/68038). AF 95% confidence interval is 0.000994. There are 0 homozygotes in GnomAd4. There are 47 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 101 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ANK2NM_001148.6 linkc.6206G>A p.Arg2069His missense_variant Exon 38 of 46 ENST00000357077.9 NP_001139.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ANK2ENST00000357077.9 linkc.6206G>A p.Arg2069His missense_variant Exon 38 of 46 1 NM_001148.6 ENSP00000349588.4

Frequencies

GnomAD3 genomes
AF:
0.000664
AC:
101
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00121
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000697
AC:
175
AN:
250958
AF XY:
0.000656
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.000202
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00137
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.00110
AC:
1605
AN:
1461818
Hom.:
3
Cov.:
35
AF XY:
0.00105
AC XY:
766
AN XY:
727206
show subpopulations
African (AFR)
AF:
0.000269
AC:
9
AN:
33468
American (AMR)
AF:
0.000268
AC:
12
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.000174
AC:
15
AN:
86250
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53420
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5766
European-Non Finnish (NFE)
AF:
0.00137
AC:
1519
AN:
1111974
Other (OTH)
AF:
0.000646
AC:
39
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
103
206
310
413
516
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
56
112
168
224
280
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000663
AC:
101
AN:
152326
Hom.:
0
Cov.:
32
AF XY:
0.000631
AC XY:
47
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.000192
AC:
8
AN:
41578
American (AMR)
AF:
0.000523
AC:
8
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00121
AC:
82
AN:
68038
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000982
Hom.:
0
Bravo
AF:
0.000654
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00208
AC:
8
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00116
AC:
10
ExAC
AF:
0.000857
AC:
104

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:11
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:6
-
Clinical Genetics, Academic Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Apr 06, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Oct 29, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ANK2: BP4, BS1 -

Long QT syndrome Uncertain:1Benign:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 08, 2024
Dept of Medical Biology, Uskudar University
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

Criteria: BS1 -

Cardiac arrhythmia, ankyrin-B-related Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Jun 27, 2016
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiac arrest Uncertain:1
Mar 13, 2014
Blueprint Genetics
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:1
Apr 09, 2025
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BS1;BP4 -

Cardiovascular phenotype Benign:1
Nov 13, 2018
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely 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
0.11
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.28
T;T
Eigen
Benign
0.0046
Eigen_PC
Benign
-0.10
FATHMM_MKL
Benign
0.33
N
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.016
T;T
MetaSVM
Benign
-0.81
T
MutationAssessor
Uncertain
2.1
M;.
PhyloP100
4.4
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.26
N;N
REVEL
Benign
0.18
Sift
Uncertain
0.010
D;D
Sift4G
Benign
0.10
T;T
Vest4
0.16
MVP
0.64
MPC
0.45
ClinPred
0.045
T
GERP RS
3.6
Varity_R
0.060
gMVP
0.026
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs149645600; hg19: chr4-114275980; API