Genetic Variant EVX2:p.Ala403Val (chr2-176080330-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001080458.2(EVX2):c.1208C>T(p.Ala403Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000039 in 1,281,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A403E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000068 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

EVX2
NM_001080458.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.46

Variant links:

Genes affected

EVX2 (HGNC:3507): (even-skipped homeobox 2) This gene is located at the 5' end of the HOXD gene cluster on chromosome 2. The encoded protein is a homeobox transcription factor that is related to the protein encoded by the Drosophila even-skipped (eve) gene, a member of the pair-rule class of segmentation genes. A 117 kb microdeletion at the 5' end of the HOXD gene cluster, which includes this gene and the HOXD9-HOXD13 genes, causes synpolydactyly, a dominantly inherited disease resulting in limb malformation. [provided by RefSeq, Sep 2009]

EVX2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3167082).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EVX2	NM_001080458.2 link	c.1208C>T	p.Ala403Val	missense_variant	Exon 3 of 3	ENST00000308618.5	NP_001073927.1	Q03828

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EVX2	ENST00000308618.5 link	c.1208C>T	p.Ala403Val	missense_variant	Exon 3 of 3	5	NM_001080458.2	ENSP00000312385.4		Q03828

Frequencies

GnomAD3 genomes

AF:

0.00000680

AC:

AN:

147096

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000152

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000144

AC:

AN:

69502

Hom.:

AF XY:

0.00

AC XY:

AN XY:

40588

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000390

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000353

AC:

AN:

1134040

Hom.:

Cov.:

AF XY:

0.00000180

AC XY:

AN XY:

554414

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000428

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000680

AC:

AN:

147096

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

71658

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000152

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1208C>T (p.A403V) alteration is located in exon 3 (coding exon 3) of the EVX2 gene. This alteration results from a C to T substitution at nucleotide position 1208, causing the alanine (A) at amino acid position 403 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

0.25

BayesDel_addAF

Benign

-0.031

BayesDel_noAF

Benign

-0.17

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

Eigen

Benign

-0.73

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.57

M_CAP

Pathogenic

0.85

MetaRNN

Benign

0.32

MetaSVM

Benign

-0.50

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.88

PROVEAN

Benign

-0.61

REVEL

Benign

0.26

Sift

Benign

0.082

Sift4G

Benign

0.30

Polyphen

0.42

Vest4

0.28

MutPred

0.40

Gain of catalytic residue at A403 (P = 0.0496);

MVP

0.85

ClinPred

0.16

GERP RS

3.0

Varity_R

0.10

gMVP

0.56

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