rs45454496

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001148.6(ANK2):​c.11791G>A​(p.Glu3931Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00343 in 1,614,190 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0035 ( 21 hom. )

Consequence

ANK2
NM_001148.6 missense

Scores

1
5
13

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:15O:1

Conservation

PhyloP100: 2.07

Publications

37 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.027564794).
BP6
Variant 4-113373381-G-A is Benign according to our data. Variant chr4-113373381-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 18060.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00228 (348/152320) while in subpopulation NFE AF = 0.00345 (235/68020). AF 95% confidence interval is 0.00309. There are 0 homozygotes in GnomAd4. There are 155 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 348 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ANK2NM_001148.6 linkc.11791G>A p.Glu3931Lys missense_variant Exon 45 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.11791G>A p.Glu3931Lys missense_variant Exon 45 of 46 1 NM_001148.6 ENSP00000349588.4 Q01484-4

Frequencies

GnomAD3 genomes
AF:
0.00229
AC:
348
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000796
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.0167
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00344
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.00283
AC:
710
AN:
251200
AF XY:
0.00286
show subpopulations
Gnomad AFR exome
AF:
0.000738
Gnomad AMR exome
AF:
0.00153
Gnomad ASJ exome
AF:
0.0184
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000323
Gnomad NFE exome
AF:
0.00369
Gnomad OTH exome
AF:
0.00424
GnomAD4 exome
AF:
0.00355
AC:
5187
AN:
1461870
Hom.:
21
Cov.:
33
AF XY:
0.00350
AC XY:
2546
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.000866
AC:
29
AN:
33480
American (AMR)
AF:
0.00136
AC:
61
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0182
AC:
476
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39696
South Asian (SAS)
AF:
0.000278
AC:
24
AN:
86258
European-Finnish (FIN)
AF:
0.000449
AC:
24
AN:
53420
Middle Eastern (MID)
AF:
0.00537
AC:
31
AN:
5768
European-Non Finnish (NFE)
AF:
0.00386
AC:
4292
AN:
1111996
Other (OTH)
AF:
0.00412
AC:
249
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
297
595
892
1190
1487
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
172
344
516
688
860
<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:
0.00228
AC:
348
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.00208
AC XY:
155
AN XY:
74498
show subpopulations
African (AFR)
AF:
0.000794
AC:
33
AN:
41584
American (AMR)
AF:
0.000719
AC:
11
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.0167
AC:
58
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.000377
AC:
4
AN:
10618
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00345
AC:
235
AN:
68020
Other (OTH)
AF:
0.00189
AC:
4
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
19
38
58
77
96
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00393
Hom.:
15
Bravo
AF:
0.00261
TwinsUK
AF:
0.00647
AC:
24
ALSPAC
AF:
0.00337
AC:
13
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00419
AC:
36
ExAC
AF:
0.00267
AC:
324
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00425
EpiControl
AF:
0.00379

ClinVar

Significance: Benign/Likely benign
Submissions summary: Uncertain:1Benign:15Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Cardiac arrhythmia, ankyrin-B-related Uncertain:1Benign:3
Dec 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely 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 allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

May 28, 2019
Mendelics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 15, 2004
OMIM
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Benign:4
Aug 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ANK2: BP4, BS1, BS2 -

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

- -

Jan 25, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 07, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: Variant affects a conserved nucleotide and results in a replacement of a medium size acidic Glutamate (E) with a large size and basic Lysine (K). 2/5 in silico tool predict deleterious outcome for this change. It was found in the large and broad cohorts of NHLBI-ESP; ExAC and 1000G projects as well as in healthy control individuals in disease specific publications at a composite allele frequency of 0.26.8% which greatly exceeds the maximal allele frequency of a disease causing ANK2 allele (0.001%) indicating a benign impact. In addition, there are three homozygous individuals reported in ExAC further supporting a non-disease causing outcome. Variant was found in ARTHY patients however because of the lack of familial segregation data or comprehensive ANK2 testing these studies do not permit establishment of a cause-effect relationship between the variant and ARTHY (Mohler_PNAS_2004; Mohler_Circ_2007). One research group investigated the impact of the variant on the function of the protein and concluded that overall, the variant has negligible loss of function impact on the protein (Mohler_Circulation_2007). Clinical diagnostic centers classify variant as Benign/Likely Benign via ClinVar without evidence to independently evaluate. Taken together, evidences support a benign nature for the variant, therefore variant was classified as likely benign. -

not specified Benign:3
Jul 25, 2017
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

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

- -

Dec 04, 2014
Eurofins Ntd Llc (ga)
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiac arrhythmia Benign:1Other:1
-
Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

This variant has been reported as associated with Cardiac arrhythmia in the following publications (PMID:15178757). This is a literature report, and does not necessarily reflect the clinical interpretation of the Imperial College / Royal Brompton Cardiovascular Genetics laboratory. -

Jun 24, 2013
Biesecker Lab/Clinical Genomics Section, National Institutes of Health
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:research

- -

ANK2-related disorder Benign:1
May 07, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Ventricular fibrillation Benign:1
Oct 02, 2018
Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Cardiovascular phenotype Benign:1
Jun 13, 2016
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
0.11
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Pathogenic
0.19
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.37
.;.;T;T;T;.;T
Eigen
Benign
0.058
Eigen_PC
Benign
0.049
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D;D;D;D;D;D
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.028
T;T;T;T;T;T;T
MetaSVM
Benign
-0.46
T
MutationAssessor
Uncertain
2.4
.;.;M;.;.;.;.
PhyloP100
2.1
PrimateAI
Benign
0.31
T
PROVEAN
Benign
1.1
N;N;N;N;N;N;N
REVEL
Uncertain
0.45
Sift
Benign
0.19
T;T;D;D;T;D;D
Sift4G
Benign
0.19
T;T;D;D;T;T;T
Polyphen
0.76
P;P;.;.;B;.;.
Vest4
0.20
MVP
0.88
MPC
0.17
ClinPred
0.030
T
GERP RS
4.3
PromoterAI
-0.045
Neutral
Varity_R
0.11
gMVP
0.40
Mutation Taster
=87/13
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: rs45454496; hg19: chr4-114294537; COSMIC: COSV99053389; API