chr3-134951923-A-G

Position:

chr3-134951923-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The ENST00000398015.8(EPHB1):c.676A>G(p.Ile226Val) variant causes a missense change. The variant allele was found at a frequency of 0.000121 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. I226F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

EPHB1
ENST00000398015.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.26

Variant links:

Genes affected

EPHB1 (HGNC:3392): (EPH receptor B1) 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 is a receptor for ephrin-B family members. [provided by RefSeq, Jul 2008]

EPHB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20481631).

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EPHB1	NM_004441.5 linkuse as main transcript	c.676A>G	p.Ile226Val	missense_variant	3/16	ENST00000398015.8	NP_004432.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EPHB1	ENST00000398015.8 linkuse as main transcript	c.676A>G	p.Ile226Val	missense_variant	3/16	1	NM_004441.5	ENSP00000381097	P1	P54762-1
EPHB1	ENST00000482618.5 linkuse as main transcript	c.676A>G	p.Ile226Val	missense_variant, NMD_transcript_variant	3/6	1		ENSP00000420338
EPHB1	ENST00000488154.5 linkuse as main transcript	n.471+205A>G		intron_variant, non_coding_transcript_variant		1
EPHB1	ENST00000647596.1 linkuse as main transcript	c.676A>G	p.Ile226Val	missense_variant	3/16			ENSP00000497153

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.000471

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000924

AC:

AN:

249038

Hom.:

AF XY:

0.0000814

AC XY:

AN XY:

135080

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000418

Gnomad NFE exome

AF:

0.000115

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000126

AC:

184

AN:

1461714

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

727138

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000262

Gnomad4 NFE exome

AF:

0.000148

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000471

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000920

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000909

AC:

EpiCase

AF:

0.000109

EpiControl

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 06, 2021

The c.676A>G (p.I226V) alteration is located in exon 3 (coding exon 3) of the EPHB1 gene. This alteration results from a A to G substitution at nucleotide position 676, causing the isoleucine (I) at amino acid position 226 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

0.11

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Benign

0.65

DEOGEN2

Benign

0.053

T;.

Eigen

Uncertain

0.35

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.0094

MetaRNN

Benign

0.20

T;T

MetaSVM

Benign

-0.63

MutationAssessor

Benign

-0.49

N;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.75

PROVEAN

Benign

0.12

N;.

REVEL

Uncertain

0.29

Sift

Benign

1.0

T;.

Sift4G

Benign

1.0

T;.

Polyphen

0.93

P;.

Vest4

0.20

MutPred

0.63

Gain of glycosylation at T224 (P = 0.0919);Gain of glycosylation at T224 (P = 0.0919);

MVP

0.62

MPC

0.37

ClinPred

0.11

GERP RS

5.4

Varity_R

0.12

gMVP

0.25

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