dbSNP rs556640912: ANK2:p.Arg3659His (chr4-113365126-G-A) – ACMG Classification: Benign (-13 pts)

Variant summary

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

The NM_001148.6(ANK2):c.10976G>A(p.Arg3659His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000353 in 1,613,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. R3659C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

ANK2
NM_001148.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 2.67

Publications

3 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

ANK2 links:

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=0.06248951).

BP6

Variant 4-113365126-G-A is Benign according to our data. Variant chr4-113365126-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 457014.

BS1

Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.0000349 (51/1461776) while in subpopulation AMR AF = 0.000783 (35/44720). AF 95% confidence interval is 0.000578. There are 0 homozygotes in GnomAdExome4. There are 26 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 6 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001148.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ANK2	NM_001148.6	MANE Select	c.10976G>A	p.Arg3659His	missense	Exon 41 of 46	NP_001139.3
ANK2	NM_001386174.1		c.11117G>A	p.Arg3706His	missense	Exon 43 of 51	NP_001373103.1	H0Y933
ANK2	NM_001386175.1		c.11093G>A	p.Arg3698His	missense	Exon 42 of 50	NP_001373104.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ANK2	ENST00000357077.9	TSL:1 MANE Select	c.10976G>A	p.Arg3659His	missense	Exon 41 of 46	ENSP00000349588.4	Q01484-4
ANK2	ENST00000506344.6	TSL:1	c.11117G>A	p.Arg3706His	missense	Exon 43 of 51	ENSP00000422888.2	H0Y933
ANK2	ENST00000394537.7	TSL:1	c.4721G>A	p.Arg1574His	missense	Exon 40 of 45	ENSP00000378044.3	Q01484-2

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152008

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000119

AC:

AN:

251170

AF XY:

0.000140

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000810

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000349

AC:

AN:

1461776

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727184

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.000783

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1111946

Other (OTH)

AF:

0.0000166

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000395

AC:

AN:

152008

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74250

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41378

American (AMR)

AF:

0.000262

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10580

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67994

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000272

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

ANK2-related disorder (1)

Cardiovascular phenotype (1)

Long QT syndrome (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.30

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.12

FATHMM_MKL

Benign

0.49

LIST_S2

Uncertain

0.92

M_CAP

Uncertain

0.21

MetaRNN

Benign

0.062

MetaSVM

Uncertain

-0.15

MutationAssessor

Benign

1.1

PhyloP100

2.7

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.27

REVEL

Benign

0.16

Sift

Benign

0.25

Sift4G

Benign

0.15

Polyphen

0.062

Vest4

0.12

MutPred

0.32

Gain of glycosylation at Y755 (P = 0.0197)

MVP

0.80

MPC

0.099

ClinPred

0.085

GERP RS

3.5

Varity_R

0.025

gMVP

0.20

Mutation Taster

=48/52

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over