Genetic Variant DACT2:p.Ala725Val (chr6-168307583-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_214462.5(DACT2):c.2174C>T(p.Ala725Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000478 in 1,549,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

DACT2
NM_214462.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.452

Variant links:

Genes affected

DACT2 (HGNC:21231): (dishevelled binding antagonist of beta catenin 2) Predicted to enable several functions, including beta-catenin binding activity; delta-catenin binding activity; and protein kinase C binding activity. Predicted to be involved in several processes, including epithelial cell morphogenesis; inner medullary collecting duct development; and negative regulation of nodal signaling pathway. Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

DACT2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.035142392).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DACT2	NM_214462.5 link	c.2174C>T	p.Ala725Val	missense_variant	Exon 4 of 4	ENST00000366795.4	NP_999627.2	Q5SW24-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DACT2	ENST00000366795.4 link	c.2174C>T	p.Ala725Val	missense_variant	Exon 4 of 4	2	NM_214462.5	ENSP00000355760.3	Q5SW24-1
DACT2	ENST00000610183.1 link	c.1664C>T	p.Ala555Val	missense_variant	Exon 3 of 3	1		ENSP00000476573.1	Q5SW24-2
DACT2	ENST00000607983.1 link	c.950C>T	p.Ala317Val	missense_variant	Exon 2 of 2	1		ENSP00000476434.1	Q5SW24-3
DACT2	ENST00000366796.7 link	c.658+2585C>T		intron_variant	Intron 3 of 5	1		ENSP00000355761.2	Q5SW24-4

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000658

AC:

AN:

151970

Hom.:

AF XY:

0.0000992

AC XY:

AN XY:

80674

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000399

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000172

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000508

AC:

AN:

1397638

Hom.:

Cov.:

AF XY:

0.0000595

AC XY:

AN XY:

689252

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000420

Gnomad4 SAS exome

AF:

0.000291

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000278

Gnomad4 OTH exome

AF:

0.0000518

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74266

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.0000790

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 21, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2174C>T (p.A725V) alteration is located in exon 4 (coding exon 4) of the DACT2 gene. This alteration results from a C to T substitution at nucleotide position 2174, causing the alanine (A) at amino acid position 725 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.77

CADD

Benign

4.8

DANN

Benign

0.86

DEOGEN2

Benign

0.042

T;.;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.36

T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.035

T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

-0.69

N;.;.

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.24

N;.;.

REVEL

Benign

0.030

Sift

Benign

0.34

T;.;.

Sift4G

Benign

0.38

T;T;T

Polyphen

0.0

B;.;.

Vest4

0.062

MutPred

0.38

Loss of sheet (P = 0.0084);.;.;

MVP

0.014

ClinPred

0.92

GERP RS

0.76

Varity_R

0.027

gMVP

0.12

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