7-100826991-C-T

Position:

chr7-100826991-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_004444.5(EPHB4):c.40G>A(p.Ala14Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00026 in 1,567,976 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 0.00022 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

EPHB4
NM_004444.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.31

Variant links:

Genes affected

EPHB4 (HGNC:3395): (EPH receptor B4) Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. The Eph family of receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene binds to ephrin-B2 and plays an essential role in vascular development. [provided by RefSeq, Jul 2008]

EPHB4 links:

EPHB4 (HGNC:):

EPHB4 links:

SLC12A9 (HGNC:17435): (solute carrier family 12 member 9) Predicted to enable potassium:chloride symporter activity. Predicted to be involved in cell volume homeostasis; inorganic ion homeostasis; and inorganic ion transmembrane transport. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

SLC12A9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.049125344).

BP6

Variant 7-100826991-C-T is Benign according to our data. Variant chr7-100826991-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1430521.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 33 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EPHB4	NM_004444.5 linkuse as main transcript	c.40G>A	p.Ala14Thr	missense_variant	1/17	ENST00000358173.8	NP_004435.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EPHB4	ENST00000358173.8 linkuse as main transcript	c.40G>A	p.Ala14Thr	missense_variant	1/17	1	NM_004444.5	ENSP00000350896.3		P54760-1

Frequencies

GnomAD3 genomes

AF:

0.000218

AC:

AN:

151562

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000291

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:

0.000309

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000264

AC:

374

AN:

1416414

Hom.:

Cov.:

AF XY:

0.000266

AC XY:

187

AN XY:

701764

show subpopulations

Gnomad4 AFR exome

AF:

0.000124

Gnomad4 AMR exome

AF:

0.0000250

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:

0.000321

Gnomad4 OTH exome

AF:

0.000342

GnomAD4 genome

AF:

0.000218

AC:

AN:

151562

Hom.:

Cov.:

AF XY:

0.000162

AC XY:

AN XY:

73960

show subpopulations

Gnomad4 AFR

AF:

0.000291

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:

0.000309

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000294

Hom.:

Bravo

AF:

0.000212

ESP6500AA

AF:

0.000459

AC:

ESP6500EA

AF:

0.000352

AC:

ExAC

AF:

0.0000838

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 09, 2023

This variant has not been reported in the literature in individuals affected with EPHB4-related conditions. ClinVar contains an entry for this variant (Variation ID: 1430521). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The threonine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 14 of the EPHB4 protein (p.Ala14Thr). -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 26, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.86

DEOGEN2

Benign

0.082

.;T;.

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.28

T;T;T

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.049

T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-0.55

.;N;N

PrimateAI

Uncertain

0.70

PROVEAN

Benign

0.010

N;N;.

REVEL

Benign

0.079

Sift

Benign

0.71

T;T;.

Sift4G

Benign

0.63

T;T;T

Polyphen

0.0

B;B;.

Vest4

0.24

MVP

0.39

MPC

0.45

ClinPred

0.013

GERP RS

1.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.016

gMVP

0.45

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