7-100822277-A-C

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_004444.5(EPHB4):c.802T>G(p.Cys268Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000256 in 1,560,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C268R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

EPHB4
NM_004444.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.32

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

capillary malformation-arteriovenous malformation 2
Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
EPHB4-associated vascular malformation spectrum
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
lymphatic malformation 7
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
capillary malformation-arteriovenous malformation syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

EPHB4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.954

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPHB4	NM_004444.5 link	c.802T>G	p.Cys268Gly	missense_variant	Exon 4 of 17	ENST00000358173.8	NP_004435.3
EPHB4	XM_017011816.2 link	c.802T>G	p.Cys268Gly	missense_variant	Exon 4 of 17		XP_016867305.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPHB4	ENST00000358173.8 link	c.802T>G	p.Cys268Gly	missense_variant	Exon 4 of 17	1	NM_004444.5	ENSP00000350896.3		P54760-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152168

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000588

AC:

AN:

169998

AF XY:

0.0000109

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000215

GnomAD4 exome

AF:

0.00000213

AC:

AN:

1408302

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

696050

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31868

American (AMR)

AF:

0.00

AC:

AN:

38782

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25338

East Asian (EAS)

AF:

0.00

AC:

AN:

36378

South Asian (SAS)

AF:

0.00

AC:

AN:

80454

European-Finnish (FIN)

AF:

0.0000418

AC:

AN:

47830

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1083712

Other (OTH)

AF:

0.0000172

AC:

AN:

58242

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74466

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41572

American (AMR)

AF:

0.00

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68000

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.47

BayesDel_noAF

Pathogenic

0.44

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.32

.;T;.

Eigen

Pathogenic

0.96

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.78

T;T;T

M_CAP

Pathogenic

0.32

MetaRNN

Pathogenic

0.95

D;D;D

MetaSVM

Pathogenic

0.89

MutationAssessor

Pathogenic

3.5

.;H;H

PhyloP100

9.3

PrimateAI

Uncertain

0.72

PROVEAN

Pathogenic

-9.3

D;D;.

REVEL

Pathogenic

0.90

Sift

Uncertain

0.0010

D;D;.

Sift4G

Pathogenic

0.0

D;D;T

Polyphen

1.0

D;D;.

Vest4

0.93

MVP

0.94

MPC

1.5

ClinPred

1.0

GERP RS

5.6

Varity_R

0.98

gMVP

0.96

Mutation Taster

=41/59

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over