rs149645600

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 1P and 9B. PP2BP4_StrongBP6BS2

The ENST00000357077.9(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. 12/21 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
ENST00000357077.9 missense

Scores

5
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:10

Conservation

PhyloP100: 4.38
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 -8 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=0.016016811).
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 id is 180270.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=8}. Variant chr4-113354824-G-A is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 101 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ANK2NM_001148.6 linkuse as main transcriptc.6206G>A p.Arg2069His missense_variant 38/46 ENST00000357077.9 NP_001139.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ANK2ENST00000357077.9 linkuse as main transcriptc.6206G>A p.Arg2069His missense_variant 38/461 NM_001148.6 ENSP00000349588 A2Q01484-4

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
GnomAD3 exomes
AF:
0.000697
AC:
175
AN:
250958
Hom.:
0
AF XY:
0.000656
AC XY:
89
AN XY:
135618
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 SAS exome
AF:
0.000163
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
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000174
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.00137
Gnomad4 OTH exome
AF:
0.000646
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
Gnomad4 AFR
AF:
0.000192
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00121
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00100
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:10
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:6
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2024ANK2: BP4, BS1 -
Likely benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesOct 29, 2020- -
Likely benign, criteria provided, single submitterclinical testingGeneDxApr 06, 2021- -
Likely benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Likely benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Long QT syndrome Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 28, 2024- -
Uncertain significance, criteria provided, single submitterresearchDept of Medical Biology, Uskudar UniversityJan 08, 2024Criteria: BS1 -
Cardiac arrhythmia, ankyrin-B-related Benign:2
Likely benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, University Medical Center UtrechtJun 27, 2016- -
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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. -
Cardiac arrest Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingBlueprint GeneticsMar 13, 2014- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 13, 2018This 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;.
MutationTaster
Benign
1.0
N;N;N;N;N;N
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

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: rs149645600; hg19: chr4-114275980; API