rs140741466

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_020987.5(ANK3):c.7469C>T(p.Pro2490Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000716 in 1,613,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00073 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00071 ( 0 hom. )

Consequence

ANK3
NM_020987.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 4.13

Variant links:

Genes affected

ANK3 (HGNC:494): (ankyrin 3) Ankyrins are a family of proteins that are believed to link the integral membrane proteins to the underlying spectrin-actin cytoskeleton and play key roles in activities such as cell motility, activation, proliferation, contact, and the maintenance of specialized membrane domains. Multiple isoforms of ankyrin with different affinities for various target proteins are expressed in a tissue-specific, developmentally regulated manner. 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. Ankyrin 3 is an immunologically distinct gene product from ankyrins 1 and 2, and was originally found at the axonal initial segment and nodes of Ranvier of neurons in the central and peripheral nervous systems. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Feb 2011]

ANK3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, ANK3

BP4

Computational evidence support a benign effect (MetaRNN=0.007812798).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANK3	NM_020987.5 linkuse as main transcript	c.7469C>T	p.Pro2490Leu	missense_variant	37/44	ENST00000280772.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANK3	ENST00000280772.7 linkuse as main transcript	c.7469C>T	p.Pro2490Leu	missense_variant	37/44	1	NM_020987.5		Q12955-3

Frequencies

GnomAD3 genomes

AF:

0.000730

AC:

111

AN:

152062

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00164

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000416

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00107

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.000794

AC:

199

AN:

250704

Hom.:

AF XY:

0.000804

AC XY:

109

AN XY:

135560

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.00223

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000917

Gnomad OTH exome

AF:

0.00164

GnomAD4 exome

AF:

0.000715

AC:

1045

AN:

1461552

Hom.:

Cov.:

AF XY:

0.000745

AC XY:

542

AN XY:

727106

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.00244

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000301

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000753

Gnomad4 OTH exome

AF:

0.000679

GnomAD4 genome

AF:

0.000729

AC:

111

AN:

152180

Hom.:

Cov.:

AF XY:

0.000780

AC XY:

AN XY:

74392

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00164

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000416

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00107

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.000828

Hom.:

Bravo

AF:

0.000982

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00105

AC:

ExAC

AF:

0.000766

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000873

EpiControl

AF:

0.00130

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Dec 02, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jul 13, 2017	The P2490L variant in the ANK3 gene has not been reported previously as a pathogenic variant, nor as a benign variant, to our knowledge. The P2490L variant was not observed with any significant frequency in approximately 6500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The P2490L variant is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. This substitution occurs at a position that is not conserved, and in silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. We interpret P2490L as a variant of uncertain significance. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Dec 29, 2014

- -

Intellectual disability-hypotonia-spasticity-sleep disorder syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

ANK3-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 12, 2024

The ANK3 c.7469C>T variant is predicted to result in the amino acid substitution p.Pro2490Leu. This variant was reported in a compound heterozygous state in an individual with a neurodevelopmental disorder (Yang et al 2019. PubMed ID: 31451636). Functional studies revealed that this variant interferes with a conformational change that is required for ANK3 to bind with another neuronal protein (Yang et al 2019. PubMed ID: 31451636). This variant is reported in 0.23% of alleles in individuals of Latino descent in gnomAD, which is at a higher frequency than expected for disease. Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.47

Cadd

Uncertain

Dann

Benign

0.89

DEOGEN2

Benign

0.23

Eigen

Benign

-0.25

Eigen_PC

Benign

0.015

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.0091

MetaRNN

Benign

0.0078

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

MutationTaster

Benign

0.99

D;D;D;D

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.050

REVEL

Benign

0.086

Sift

Benign

0.61

Polyphen

0.0

Vest4

0.35

MVP

0.31

MPC

0.15

ClinPred

0.011

GERP RS

5.6

Varity_R

0.094

gMVP

0.050

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