Variant 19-7372830-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001367823.1(ARHGEF18):c.34C>T(p.Arg12Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000454 in 1,234,458 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 8/10 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00045 ( 1 hom. )

Consequence

ARHGEF18
NM_001367823.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.441

Variant links:

Genes affected

ARHGEF18 (HGNC:17090): (Rho/Rac guanine nucleotide exchange factor 18) Rho GTPases are GTP binding proteins that regulate a wide spectrum of cellular functions. These cellular processes include cytoskeletal rearrangements, gene transcription, cell growth and motility. Activation of Rho GTPases is under the direct control of guanine nucleotide exchange factors (GEFs). The protein encoded by this gene is a guanine nucleotide exchange factor and belongs to the Rho GTPase GEF family. Family members share a common feature, a Dbl (DH) homology domain followed by a pleckstrin (PH) homology domain. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Nov 2018]

ARHGEF18 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0091762245).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000473 (72/152322) while in subpopulation AFR AF= 0.00118 (49/41576). AF 95% confidence interval is 0.000915. There are 0 homozygotes in gnomad4. There are 28 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGEF18	NM_001367823.1 linkuse as main transcript	c.34C>T	p.Arg12Trp	missense_variant	3/29	ENST00000668164.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGEF18	ENST00000668164.2 linkuse as main transcript	c.34C>T	p.Arg12Trp	missense_variant	3/29		NM_001367823.1	A2	Q6ZSZ5-4
ARHGEF18	ENST00000671891.2 linkuse as main transcript	c.229C>T	p.Arg77Trp	missense_variant	3/10

Frequencies

GnomAD3 genomes

AF:

0.000466

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00116

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000309

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000304

AC:

AN:

6572

Hom.:

AF XY:

0.00

AC XY:

AN XY:

3192

show subpopulations

Gnomad AFR exome

AF:

0.00275

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 NFE exome

AF:

0.000180

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000451

AC:

488

AN:

1082136

Hom.:

Cov.:

AF XY:

0.000415

AC XY:

212

AN XY:

510946

show subpopulations

Gnomad4 AFR exome

AF:

0.00122

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000511

Gnomad4 NFE exome

AF:

0.000455

Gnomad4 OTH exome

AF:

0.000547

GnomAD4 genome

AF:

0.000473

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00118

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000309

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000614

Hom.:

Bravo

AF:

0.000567

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00130

AC:

ExAC

AF:

0.000814

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

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Aug 01, 2023

ARHGEF18: PM2 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Uncertain

1.0

FATHMM_MKL

Benign

0.032

LIST_S2

Benign

0.51

M_CAP

Benign

0.025

MetaRNN

Benign

0.0092

Sift4G

Benign

0.086

Vest4

0.097

MVP

0.39

GERP RS

1.9

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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