11-128969248-G-C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2 BP4_Moderate

The NM_001378024.1(ARHGAP32):c.5965C>G(p.Gln1989Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: ARHGAP32 NM_001378024.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.26

Genes affected

ARHGAP32 (HGNC:17399): (Rho GTPase activating protein 32) RICS is a neuron-associated GTPase-activating protein that may regulate dendritic spine morphology and strength by modulating Rho GTPase (see RHOA; MIM 165390) activity (Okabe et al., 2003 [PubMed 12531901]).[supplied by OMIM, Mar 2008]

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PP2: Missense variant where missense usually causes diseases, ARHGAP32
• BP4: Computational evidence support a benign effect (MetaRNN=0.10026899).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGAP32	NM_001378024.1	c.5965C>G	p.Gln1989Glu	missense_variant	23/23	ENST00000682385.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGAP32	ENST00000682385.1	c.5965C>G	p.Gln1989Glu	missense_variant	23/23		NM_001378024.1	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251354 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135840

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461798 Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5 AN XY: 727196

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: 0.00000630

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Alfa AF: 0.000111 Hom.: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 06, 2022

The c.5923C>G (p.Q1975E) alteration is located in exon 22 (coding exon 22) of the ARHGAP32 gene. This alteration results from a C to G substitution at nucleotide position 5923, causing the glutamine (Q) at amino acid position 1975 to be replaced by a glutamic acid (E). 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	0.079
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.53
Cadd	Benign	17
Dann	Uncertain	0.98
DEOGEN2	Benign	0.16	T;.;.
Eigen	Benign	-0.23
Eigen_PC	Benign	-0.18
FATHMM_MKL	Benign	0.58	D
LIST_S2	Benign	0.79	T;.;T
M_CAP	Benign	0.0031	T
MetaRNN	Benign	0.10	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.1	M;.;.
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.64	N;N;N
REVEL	Benign	0.041
Sift	Uncertain	0.0040	D;D;D
Sift4G	Benign	1.0	T;T;T
Polyphen		0.26	B;.;.
Vest4		0.16
MutPred		0.19		Gain of solvent accessibility (P = 0.0421);.;.;
MVP		0.15
MPC		0.15
ClinPred		0.14	T
GERP RS		5.1
Varity_R		0.18
gMVP		0.096

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

Other links and lift over

dbSNP: rs1339565010; hg19: chr11-128839143;