7-100813656-T-A

Variant names:

• chr7-100813656-T-A
• rs314359
• NM_004444.5:c.1752A>T
• EPHB4 p.Gly584Gly

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_004444.5(EPHB4):​c.1752A>T​(p.Gly584Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000659 in 151,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G584G) has been classified as Benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
• Consequence: EPHB4 NM_004444.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0220
• Publications: 31 publications found

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: Genomics England PanelApp, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• EPHB4-associated vascular malformation spectrum

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
• lymphatic malformation 7

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• capillary malformation-arteriovenous malformation syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP7: Synonymous conserved (PhyloP=0.022 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004444.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPHB4	NM_004444.5	MANE Select	c.1752A>T	p.Gly584Gly	synonymous	Exon 10 of 17	NP_004435.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPHB4	ENST00000358173.8	TSL:1 MANE Select	c.1752A>T	p.Gly584Gly	synonymous	Exon 10 of 17	ENSP00000350896.3	P54760-1
	EPHB4	ENST00000360620.7	TSL:1	c.1752A>T	p.Gly584Gly	synonymous	Exon 10 of 16	ENSP00000353833.3	Q96L35
	EPHB4	ENST00000487222.5	TSL:1	n.2953A>T		non_coding_transcript_exon	Exon 9 of 16

Frequencies

GnomAD3 genomes AF: 0.00000659 AC: 1 AN: 151818 Hom.: 0 Cov.: 31

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: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 52

GnomAD4 genome AF: 0.00000659 AC: 1 AN: 151818 Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1 AN XY: 74146

African (AFR) AF: 0.00 AC: 0 AN: 41314

American (AMR) AF: 0.00 AC: 0 AN: 15224

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3464

East Asian (EAS) AF: 0.00 AC: 0 AN: 5168

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10556

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67956

Other (OTH) AF: 0.00 AC: 0 AN: 2086

Alfa AF: 0.00 Hom.: 40995

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	7.3
DANN	Benign	0.55
PhyloP100		0.022

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs314359;

hg19: chr7-100411278;