rs2107026

Variant names:

• chr4-113162673-T-A
• rs2107026
• NM_001148.6:c.85-11743T>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001148.6(ANK2):​c.85-11743T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.211 in 151,276 control chromosomes in the GnomAD database, including 3,616 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.21 (3616 hom., cov: 30)
• Consequence: ANK2 NM_001148.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.50
• Publications: 1 publications found

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.265 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANK2	NM_001148.6	c.85-11743T>A		intron_variant	Intron 1 of 45	ENST00000357077.9	NP_001139.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANK2	ENST00000357077.9	c.85-11743T>A		intron_variant	Intron 1 of 45	1	NM_001148.6	ENSP00000349588.4

Frequencies

GnomAD3 genomes AF: 0.211 AC: 31874 AN: 151194 Hom.: 3618 Cov.: 30

Gnomad AFR AF: 0.269

Gnomad AMI AF: 0.203

Gnomad AMR AF: 0.170

Gnomad ASJ AF: 0.216

Gnomad EAS AF: 0.0681

Gnomad SAS AF: 0.188

Gnomad FIN AF: 0.255

Gnomad MID AF: 0.232

Gnomad NFE AF: 0.191

Gnomad OTH AF: 0.199

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.211 AC: 31892 AN: 151276 Hom.: 3616 Cov.: 30 AF XY: 0.212 AC XY: 15660 AN XY: 73844

African (AFR) AF: 0.269 AC: 11077 AN: 41206

American (AMR) AF: 0.170 AC: 2581 AN: 15178

Ashkenazi Jewish (ASJ) AF: 0.216 AC: 750 AN: 3470

East Asian (EAS) AF: 0.0689 AC: 356 AN: 5168

South Asian (SAS) AF: 0.188 AC: 902 AN: 4792

European-Finnish (FIN) AF: 0.255 AC: 2621 AN: 10296

Middle Eastern (MID) AF: 0.248 AC: 72 AN: 290

European-Non Finnish (NFE) AF: 0.191 AC: 12935 AN: 67874

Other (OTH) AF: 0.197 AC: 413 AN: 2092

Alfa AF: 0.195 Hom.: 372

Bravo AF: 0.208

Asia WGS AF: 0.127 AC: 444 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	6.0
DANN	Benign	0.76
PhyloP100		1.5
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2107026; hg19: chr4-114083829;