7-100803470-C-T

Position:

• chr7-100803470-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_004444.5(EPHB4):​c.2955G>A​(p.Pro985=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000141 in 1,572,610 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 Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00027 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00013 (0 hom.)
• Consequence: EPHB4 NM_004444.5 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.641

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 7-100803470-C-T is Benign according to our data. Variant chr7-100803470-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1578559.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.641 with no splicing effect.
• BS1: Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000269 (41/152286) while in subpopulation EAS AF= 0.00658 (34/5170). AF 95% confidence interval is 0.00484. There are 0 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 41 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EPHB4	NM_004444.5	c.2955G>A	p.Pro985=	synonymous_variant	17/17	ENST00000358173.8	NP_004435.3
EPHB4	XM_017011816.2	c.3009G>A	p.Pro1003=	synonymous_variant	17/17		XP_016867305.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EPHB4	ENST00000358173.8	c.2955G>A	p.Pro985=	synonymous_variant	17/17	1	NM_004444.5	ENSP00000350896	P1
EPHB4	ENST00000360620.7	c.2799G>A	p.Pro933=	synonymous_variant	16/16	1		ENSP00000353833
EPHB4	ENST00000487222.5	n.4156G>A		non_coding_transcript_exon_variant	16/16	1
EPHB4	ENST00000616502.4	c.*1420G>A		3_prime_UTR_variant	14/14	5		ENSP00000482702

Frequencies

GnomAD3 genomes AF: 0.000276 AC: 42 AN: 152168 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00675

Gnomad SAS AF: 0.00103

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000350 AC: 70 AN: 200208 Hom.: 0 AF XY: 0.000336 AC XY: 36 AN XY: 107176

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000180

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00336

Gnomad SAS exome AF: 0.000357

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000229

Gnomad OTH exome AF: 0.000391

GnomAD4 exome AF: 0.000127 AC: 180 AN: 1420324 Hom.: 0 Cov.: 30 AF XY: 0.000128 AC XY: 90 AN XY: 700878

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000154

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00271

Gnomad4 SAS exome AF: 0.000445

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000138

Gnomad4 OTH exome AF: 0.000324

GnomAD4 genome AF: 0.000269 AC: 41 AN: 152286 Hom.: 0 Cov.: 32 AF XY: 0.000349 AC XY: 26 AN XY: 74472

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00658

Gnomad4 SAS AF: 0.00104

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000975 Hom.: 0

Bravo AF: 0.000238

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 23, 2021

- -

Cardiovascular phenotype Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 06, 2019

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
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.90
DANN	Benign	0.83
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

Other links and lift over

dbSNP: rs56086910; hg19: chr7-100401092;