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6-129616273-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_033515.3(ARHGAP18):c.983C>T(p.Ala328Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,609,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

ARHGAP18
NM_033515.3 missense

Scores

17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.20
Variant links:
Genes affected
ARHGAP18 (HGNC:21035): (Rho GTPase activating protein 18) Enables GTPase activator activity. Involved in several processes, including regulation of actin filament polymerization; regulation of small GTPase mediated signal transduction; and small GTPase mediated signal transduction. Located in cytosol; nuclear speck; and plasma membrane. Part of cytoplasmic microtubule and ruffle. Implicated in schizophrenia. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06072271).
BP6
Variant 6-129616273-G-A is Benign according to our data. Variant chr6-129616273-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2346887.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARHGAP18NM_033515.3 linkuse as main transcriptc.983C>T p.Ala328Val missense_variant 7/15 ENST00000368149.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARHGAP18ENST00000368149.3 linkuse as main transcriptc.983C>T p.Ala328Val missense_variant 7/151 NM_033515.3 P1Q8N392-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151920
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000319
AC:
8
AN:
250722
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135548
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
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:
0.0000172
AC:
25
AN:
1457544
Hom.:
0
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
724846
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000118
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000499
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
151920
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74206
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsOct 06, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.048
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.74
Cadd
Benign
1.1
Dann
Benign
0.66
DEOGEN2
Benign
0.024
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.26
T
M_CAP
Benign
0.0025
T
MetaRNN
Benign
0.061
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-1.1
N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.27
T
REVEL
Benign
0.034
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.10
MVP
0.35
MPC
0.14
ClinPred
0.022
T
GERP RS
1.9
Varity_R
0.014
gMVP
0.19

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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.

Other links and lift over

dbSNP: rs191935343; hg19: chr6-129937418; COSMIC: COSV63765320; API