4-113358472-T-C

Position:

chr4-113358472-T-C

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_001148.6(ANK2):c.9854T>C(p.Ile3285Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00848 in 1,614,066 control chromosomes in the GnomAD database, including 101 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0081 ( 6 hom., cov: 32)

Exomes 𝑓: 0.0085 ( 95 hom. )

Consequence

ANK2
NM_001148.6 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.70

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ANK2. . Gene score misZ 1.9641 (greater than the threshold 3.09). Trascript score misZ 4.2513 (greater than threshold 3.09). GenCC has associacion of gene with heart conduction disease, Brugada syndrome, long QT syndrome, complex neurodevelopmental disorder, cardiac arrhythmia, ankyrin-B-related, catecholaminergic polymorphic ventricular tachycardia.

BP4

Computational evidence support a benign effect (MetaRNN=0.010287136).

BP6

Variant 4-113358472-T-C is Benign according to our data. Variant chr4-113358472-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 190528.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-113358472-T-C is described in Lovd as [Benign]. Variant chr4-113358472-T-C is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0081 (1234/152274) while in subpopulation AMR AF= 0.0157 (240/15284). AF 95% confidence interval is 0.0141. There are 6 homozygotes in gnomad4. There are 574 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 1234 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ANK2	NM_001148.6 linkuse as main transcript	c.9854T>C	p.Ile3285Thr	missense_variant	38/46	ENST00000357077.9	NP_001139.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ANK2	ENST00000357077.9 linkuse as main transcript	c.9854T>C	p.Ile3285Thr	missense_variant	38/46	1	NM_001148.6	ENSP00000349588	A2	Q01484-4

Frequencies

GnomAD3 genomes

AF:

0.00812

AC:

1236

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00157

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0157

Gnomad ASJ

AF:

0.0236

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00414

Gnomad FIN

AF:

0.00443

Gnomad MID

AF:

0.0348

Gnomad NFE

AF:

0.0109

Gnomad OTH

AF:

0.0149

GnomAD3 exomes

AF:

0.00872

AC:

2184

AN:

250414

Hom.:

AF XY:

0.00905

AC XY:

1225

AN XY:

135314

show subpopulations

Gnomad AFR exome

AF:

0.00142

Gnomad AMR exome

AF:

0.00874

Gnomad ASJ exome

AF:

0.0276

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00474

Gnomad FIN exome

AF:

0.00578

Gnomad NFE exome

AF:

0.0109

Gnomad OTH exome

AF:

0.0139

GnomAD4 exome

AF:

0.00852

AC:

12453

AN:

1461792

Hom.:

Cov.:

AF XY:

0.00877

AC XY:

6381

AN XY:

727200

show subpopulations

Gnomad4 AFR exome

AF:

0.00167

Gnomad4 AMR exome

AF:

0.00919

Gnomad4 ASJ exome

AF:

0.0280

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00497

Gnomad4 FIN exome

AF:

0.00595

Gnomad4 NFE exome

AF:

0.00873

Gnomad4 OTH exome

AF:

0.0101

GnomAD4 genome

AF:

0.00810

AC:

1234

AN:

152274

Hom.:

Cov.:

AF XY:

0.00771

AC XY:

574

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.00156

Gnomad4 AMR

AF:

0.0157

Gnomad4 ASJ

AF:

0.0236

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00373

Gnomad4 FIN

AF:

0.00443

Gnomad4 NFE

AF:

0.0109

Gnomad4 OTH

AF:

0.0147

Alfa

AF:

0.0115

Hom.:

Bravo

AF:

0.00911

TwinsUK

AF:

0.00809

AC:

ALSPAC

AF:

0.00752

AC:

ESP6500AA

AF:

0.00272

AC:

ESP6500EA

AF:

0.00895

AC:

ExAC

AF:

0.00820

AC:

996

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0131

EpiControl

AF:

0.0124

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:15

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 12, 2016	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. -
Benign, criteria provided, single submitter	research	Biesecker Lab/Clinical Genomics Section, National Institutes of Health	Jun 24, 2013	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -

not provided

Benign:4

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Aug 01, 2024	ANK2: BS1, BS2 -
Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Dec 19, 2016	Variant summary: The ANK2 c.9854T>C (p.Ile3285Thr) variant involves the alteration of a conserved nucleotide. 4/4 in silico tools predict a damaging outcome for this variant (SNPs&GO not captured due to low reliability index). This variant was found in 996/121056 control chromosomes (8 homozygotes) at a frequency of 0.0082276, which is approximately 823 times the estimated maximal expected allele frequency of a pathogenic ANK2 variant (0.00001), strong evidence that this variant is a benign polymorphism. The variant has been reported in the literature, without strong evidence for causality. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as likely benign/benign. Taken together, this variant is classified as likely benign. -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 22, 2023	- -

Cardiac arrhythmia, ankyrin-B-related

Benign:4

Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	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. -
Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Dec 05, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Apr 08, 2022	- -
Likely benign, criteria provided, single submitter	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	Oct 09, 2014	- -

Long QT syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 24, 2024

- -

Cardiovascular phenotype

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 18, 2015

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. -

Atrial fibrillation;C0878544:Cardiomyopathy

Benign:1

Benign, criteria provided, single submitter

clinical testing

Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego

Apr 17, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Pathogenic

0.46

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.44

T;T;T

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

D;D;D

MetaRNN

Benign

0.010

T;T;T

MetaSVM

Pathogenic

0.88

MutationAssessor

Uncertain

2.4

M;.;.

MutationTaster

Benign

0.97

D;D;D;D;D;D

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-1.8

N;N;N

REVEL

Uncertain

0.54

Sift

Uncertain

0.018

D;D;D

Sift4G

Uncertain

0.028

D;D;T

Vest4

0.86

MVP

0.97

MPC

0.50

ClinPred

0.015

GERP RS

5.8

Varity_R

0.13

gMVP

0.077

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over