Genetic Variant ARHGEF4:p.Arg1247Cys (chr2-130931138-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001367493.1(ARHGEF4):c.3739C>T(p.Arg1247Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000607 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

ARHGEF4
NM_001367493.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.303

Variant links:

Genes affected

ARHGEF4 (HGNC:684): (Rho guanine nucleotide exchange factor 4) Rho GTPases play a fundamental role in numerous cellular processes that are initiated by extracellular stimuli that work through G protein coupled receptors. The protein encoded by this gene may form complex with G proteins and stimulate Rho-dependent signals. Multiple alternatively spliced transcript variants encoding different isoforms have been found, but the full-length nature of some variants has not been determined. [provided by RefSeq, Jun 2013]

ARHGEF4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1634996).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARHGEF4	NM_001367493.1 link	c.3739C>T	p.Arg1247Cys	missense_variant	Exon 3 of 14	ENST00000409359.7	NP_001354422.1
ARHGEF4	NM_001375900.1 link	c.226C>T	p.Arg76Cys	missense_variant	Exon 2 of 13		NP_001362829.1
ARHGEF4	NM_015320.4 link	c.181C>T	p.Arg61Cys	missense_variant	Exon 4 of 15		NP_056135.2	Q9NR80-1Q9NTG0
ARHGEF4	NM_001375901.1 link	c.70C>T	p.Arg24Cys	missense_variant	Exon 5 of 16		NP_001362830.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARHGEF4	ENST00000409359.7 link	c.3739C>T	p.Arg1247Cys	missense_variant	Exon 3 of 14	5	NM_001367493.1	ENSP00000386794.3		E7EV07

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000761

AC:

AN:

249566

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

135064

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.000116

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:

0.000116

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000616

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.0000605

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000764

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.0000718

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.181C>T (p.R61C) alteration is located in exon 3 (coding exon 1) of the ARHGEF4 gene. This alteration results from a C to T substitution at nucleotide position 181, causing the arginine (R) at amino acid position 61 to be replaced by a cysteine (C). 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

0.068

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.054

T;T;.;.;T;.

Eigen

Benign

-0.66

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.76

T;T;T;T;T;T

M_CAP

Benign

0.064

MetaRNN

Benign

0.16

T;T;T;T;T;T

MetaSVM

Benign

-0.93

PrimateAI

Benign

0.22

PROVEAN

Benign

-2.1

.;N;.;D;N;N

REVEL

Benign

0.069

Sift

Uncertain

0.0040

.;D;.;D;D;D

Sift4G

Uncertain

0.0070

.;D;D;D;D;D

Polyphen

0.88, 0.92

.;P;.;.;.;P

Vest4

0.17, 0.18, 0.17, 0.16

MVP

0.69

MPC

0.23

ClinPred

0.070

GERP RS

0.094

Varity_R

0.10

gMVP

0.064

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