4-112904252-T-C

Position:

• chr4-112904252-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The ENST00000506722.5(ANK2):​c.-39-203T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0844 in 152,240 control chromosomes in the GnomAD database, including 1,222 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.084 (1222 hom., cov: 32)
• Consequence: ANK2 ENST00000506722.5 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.01

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]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 4-112904252-T-C is Benign according to our data. Variant chr4-112904252-T-C is described in ClinVar as [Benign]. Clinvar id is 678731.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.232 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANK2	NM_001127493.3	c.-39-203T>C		intron_variant
ANK2	NM_001354239.2	c.-39-203T>C		intron_variant
ANK2	NM_001354243.2	c.-39-203T>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANK2	ENST00000506722.5	c.-39-203T>C		intron_variant		1
ANK2	ENST00000503271.5	c.-39-203T>C		intron_variant		2
ANK2	ENST00000503423.6	c.-39-203T>C		intron_variant		5		A2

Frequencies

GnomAD3 genomes AF: 0.0844 AC: 12840 AN: 152122 Hom.: 1218 Cov.: 32

Gnomad AFR AF: 0.236

Gnomad AMI AF: 0.0482

Gnomad AMR AF: 0.0501

Gnomad ASJ AF: 0.0357

Gnomad EAS AF: 0.000576

Gnomad SAS AF: 0.00518

Gnomad FIN AF: 0.00876

Gnomad MID AF: 0.0665

Gnomad NFE AF: 0.0270

Gnomad OTH AF: 0.0727

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

GnomAD4 genome AF: 0.0844 AC: 12852 AN: 152240 Hom.: 1222 Cov.: 32 AF XY: 0.0810 AC XY: 6028 AN XY: 74458

Gnomad4 AFR AF: 0.236

Gnomad4 AMR AF: 0.0499

Gnomad4 ASJ AF: 0.0357

Gnomad4 EAS AF: 0.000578

Gnomad4 SAS AF: 0.00518

Gnomad4 FIN AF: 0.00876

Gnomad4 NFE AF: 0.0270

Gnomad4 OTH AF: 0.0720

Alfa AF: 0.0637 Hom.: 107

Bravo AF: 0.0943

Asia WGS AF: 0.0210 AC: 72 AN: 3476

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 16, 2018

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	7.1
DANN	Benign	0.62

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs11728353; hg19: chr4-113825408;