rs375563358

chr17-8318795-G-Achr17-8318795-G-Cchr17-8318795-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_173728.4(ARHGEF15):c.1918G>A(p.Glu640Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,613,588 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. E640Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

ARHGEF15
NM_173728.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.45

Variant links:

Genes affected

ARHGEF15 (HGNC:15590): (Rho guanine nucleotide exchange factor 15) Rho GTPases play a fundamental role in numerous cellular processes that are initiated by extracellular stimuli that work through G protein-coupled receptors. This gene encodes a protein that functions as a specific guanine nucleotide exchange factor for RhoA. It also interacts with ephrin A4 in vascular smooth muscle cells. Two alternatively spliced transcripts variants that encode the same protein have been found for this gene. [provided by RefSeq, Aug 2010]

ARHGEF15 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGEF15	NM_173728.4 linkuse as main transcript	c.1918G>A	p.Glu640Lys	missense_variant	12/16	ENST00000361926.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
ARHGEF15	ENST00000361926.8 linkuse as main transcript	c.1918G>A	p.Glu640Lys	missense_variant	12/16	1	NM_173728.4	P1
ARHGEF15	ENST00000421050.2 linkuse as main transcript	c.1918G>A	p.Glu640Lys	missense_variant	12/16	1		P1
ARHGEF15	ENST00000647883.1 linkuse as main transcript	c.1381G>A	p.Glu461Lys	missense_variant	9/13
ARHGEF15	ENST00000582060.1 linkuse as main transcript	n.30G>A		non_coding_transcript_exon_variant	1/2	5

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

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

GnomAD3 exomes

AF:

0.0000520

AC:

AN:

249994

Hom.:

AF XY:

0.0000443

AC XY:

AN XY:

135472

show subpopulations

Gnomad AFR exome

AF:

0.000816

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1461278

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726972

show subpopulations

Gnomad4 AFR exome

AF:

0.000627

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000204

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.000722

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000535

Hom.:

Bravo

AF:

0.000193

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000577

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 07, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 572173). This variant has not been reported in the literature in individuals affected with ARHGEF15-related conditions. This variant is present in population databases (rs375563358, gnomAD 0.07%), and has an allele count higher than expected for a pathogenic variant. This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 640 of the ARHGEF15 protein (p.Glu640Lys). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.75

BayesDel_addAF

Benign

-0.017

BayesDel_noAF

Uncertain

0.13

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Uncertain

0.47

T;T;.

Eigen

Pathogenic

0.83

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Pathogenic

0.99

M_CAP

Uncertain

0.14

MetaRNN

Uncertain

0.66

D;D;D

MetaSVM

Pathogenic

0.81

MutationAssessor

Pathogenic

3.3

M;M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-3.9

D;D;.

REVEL

Pathogenic

0.80

Sift

Benign

0.032

D;D;.

Sift4G

Uncertain

0.017

D;D;.

Polyphen

1.0

D;D;.

Vest4

0.66

MVP

0.94

MPC

0.67

ClinPred

0.78

GERP RS

4.8

Varity_R

0.59

gMVP

0.75

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