rs924531335

chr17-8316117-A-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_173728.4(ARHGEF15):c.1673A>C(p.Gln558Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000156 in 1,603,492 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000014 (0 hom.)
• Consequence: ARHGEF15 NM_173728.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1 O:1
• Conservation: PhyloP100: 6.91

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.944

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGEF15	NM_173728.4	c.1673A>C	p.Gln558Pro	missense_variant	9/16	ENST00000361926.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGEF15	ENST00000361926.8	c.1673A>C	p.Gln558Pro	missense_variant	9/16	1	NM_173728.4	P1
ARHGEF15	ENST00000421050.2	c.1673A>C	p.Gln558Pro	missense_variant	9/16	1		P1
ARHGEF15	ENST00000647883.1	c.1136A>C	p.Gln379Pro	missense_variant	6/13

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152176 Hom.: 0 Cov.: 32

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: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.00000425 AC: 1 AN: 235508 Hom.: 0 AF XY: 0.00000772 AC XY: 1 AN XY: 129452

Gnomad AFR exome AF: 0.00

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: 0.00000925

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000145 AC: 21 AN: 1451316 Hom.: 0 Cov.: 33 AF XY: 0.0000125 AC XY: 9 AN XY: 722280

Gnomad4 AFR exome AF: 0.00

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: 0.00

Gnomad4 NFE exome AF: 0.0000171

Gnomad4 OTH exome AF: 0.0000332

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152176 Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3 AN XY: 74340

Gnomad4 AFR AF: 0.00

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: 0.0000588

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 09, 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: 579582). This variant has not been reported in the literature in individuals affected with ARHGEF15-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.002%). This sequence change replaces glutamine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 558 of the ARHGEF15 protein (p.Gln558Pro). -

not provided Other:1

not provided, no classification provided

phenotyping only

GenomeConnect, ClinGen

-

Variant classified as Uncertain significance and reported on 10-22-2019 by Lab or GTR ID 500031. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
Cadd	Pathogenic	30
Dann	Uncertain	0.99
DEOGEN2	Uncertain	0.61	D;D;.
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Pathogenic	0.97	D
M_CAP	Uncertain	0.099	D
MetaRNN	Pathogenic	0.94	D;D;D
MetaSVM	Uncertain	-0.13	T
MutationAssessor	Uncertain	2.8	M;M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-5.9	D;D;.
REVEL	Pathogenic	0.73
Sift	Uncertain	0.0010	D;D;.
Sift4G	Pathogenic	0.0	D;D;.
Polyphen		1.0	D;D;.
Vest4		0.93
MutPred		0.84		Loss of MoRF binding (P = 0.0434);Loss of MoRF binding (P = 0.0434);.;
MVP		0.81
MPC		2.0
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.92
gMVP		0.97

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs924531335; hg19: chr17-8219435;