chr7-100803502-C-T

Variant names:

• chr7-100803502-C-T
• rs1437430146
• NM_004444.5:c.2923G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004444.5(EPHB4):​c.2923G>A​(p.Gly975Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,184 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: EPHB4 NM_004444.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.66
• Publications: 0 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: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• EPHB4-associated vascular malformation spectrum

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10437366).

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.2923G>A	p.Gly975Arg	missense	Exon 17 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.2923G>A	p.Gly975Arg	missense	Exon 17 of 17	ENSP00000350896.3	P54760-1
	EPHB4	ENST00000360620.7	TSL:1	c.2767G>A	p.Gly923Arg	missense	Exon 16 of 16	ENSP00000353833.3	Q96L35
	EPHB4	ENST00000487222.5	TSL:1	n.4124G>A		non_coding_transcript_exon	Exon 16 of 16

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152184 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1434890 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 710302

African (AFR) AF: 0.00 AC: 0 AN: 33278

American (AMR) AF: 0.00 AC: 0 AN: 40332

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25426

East Asian (EAS) AF: 0.00 AC: 0 AN: 38908

South Asian (SAS) AF: 0.00 AC: 0 AN: 82138

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51922

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5726

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1097766

Other (OTH) AF: 0.00 AC: 0 AN: 59394

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152184 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74342

African (AFR) AF: 0.0000241 AC: 1 AN: 41460

American (AMR) AF: 0.00 AC: 0 AN: 15256

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68044

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.081	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.071	T
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.38
FATHMM_MKL	Benign	0.26	N
LIST_S2	Benign	0.83	T
M_CAP	Benign	0.070	D
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-0.76	T
MutationAssessor	Benign	0.92	L
PhyloP100		1.7
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-0.26	N
REVEL	Benign	0.14
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.011	D
Polyphen		0.0010	B
Vest4		0.25
MutPred		0.15		Loss of ubiquitination at K973 (P = 0.0176)
MVP		0.36
MPC		0.61
ClinPred		0.17	T
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.15
gMVP		0.62
Mutation Taster		=79/21	polymorphism

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

Other links and lift over

dbSNP: rs1437430146; hg19: chr7-100401124;