18-6868153-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001366230.1(ARHGAP28):ā€‹c.730A>Gā€‹(p.Ile244Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,662 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000039 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

ARHGAP28
NM_001366230.1 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.235
Variant links:
Genes affected
ARHGAP28 (HGNC:25509): (Rho GTPase activating protein 28) Predicted to enable GTPase activator activity. Predicted to be involved in negative regulation of GTP binding activity; regulation of actin filament organization; and regulation of small GTPase mediated signal transduction. Predicted to be located in cytosol. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04627347).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARHGAP28NM_001366230.1 linkuse as main transcriptc.730A>G p.Ile244Val missense_variant 6/18 ENST00000383472.9 NP_001353159.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARHGAP28ENST00000383472.9 linkuse as main transcriptc.730A>G p.Ile244Val missense_variant 6/185 NM_001366230.1 ENSP00000372964.4 Q9P2N2-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251424
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135884
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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:
0.00000342
AC:
5
AN:
1461472
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727076
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.000145
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 09, 2024The c.253A>G (p.I85V) alteration is located in exon 5 (coding exon 4) of the ARHGAP28 gene. This alteration results from a A to G substitution at nucleotide position 253, causing the isoleucine (I) at amino acid position 85 to be replaced by a valine (V). 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
0.064
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
0.053
DANN
Benign
0.37
DEOGEN2
Benign
0.013
T;.;.;.;.;.;.
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.99
FATHMM_MKL
Benign
0.33
N
LIST_S2
Benign
0.51
T;T;T;.;T;T;T
M_CAP
Benign
0.0062
T
MetaRNN
Benign
0.046
T;T;T;T;T;T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.5
L;.;.;.;.;.;.
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.13
.;N;.;N;N;N;.
REVEL
Benign
0.077
Sift
Benign
0.30
.;T;.;T;T;T;.
Sift4G
Benign
0.76
T;T;T;T;T;T;T
Polyphen
0.30
B;P;.;.;.;.;.
Vest4
0.15
MutPred
0.33
Gain of catalytic residue at I244 (P = 0.0082);.;.;.;.;.;.;
MVP
0.067
MPC
0.14
ClinPred
0.039
T
GERP RS
0.10
Varity_R
0.020
gMVP
0.14

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.

Other links and lift over

dbSNP: rs746421831; hg19: chr18-6868152; API