chr18-6873731-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001366230.1(ARHGAP28):ā€‹c.1168C>Gā€‹(p.Arg390Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,792 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 (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000068 ( 0 hom. )

Consequence

ARHGAP28
NM_001366230.1 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.28804252).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARHGAP28NM_001366230.1 linkuse as main transcriptc.1168C>G p.Arg390Gly missense_variant 9/18 ENST00000383472.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARHGAP28ENST00000383472.9 linkuse as main transcriptc.1168C>G p.Arg390Gly missense_variant 9/185 NM_001366230.1 A2Q9P2N2-1
ENST00000583659.1 linkuse as main transcriptn.406-194G>C intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251194
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135810
show subpopulations
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461792
Hom.:
0
Cov.:
33
AF XY:
0.00000963
AC XY:
7
AN XY:
727194
show subpopulations
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:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsFeb 22, 2023The c.691C>G (p.R231G) alteration is located in exon 8 (coding exon 7) of the ARHGAP28 gene. This alteration results from a C to G substitution at nucleotide position 691, causing the arginine (R) at amino acid position 231 to be replaced by a glycine (G). 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
0.14
BayesDel_addAF
Benign
-0.083
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T;.;.;.;.;.;T
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.89
D;D;.;D;D;D;D
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.29
T;T;T;T;T;T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Benign
0.81
L;.;.;.;.;.;.
MutationTaster
Benign
0.98
D;D;D;D;D;D;D;D
PrimateAI
Benign
0.22
T
PROVEAN
Pathogenic
-5.2
D;D;D;D;D;.;.
REVEL
Benign
0.10
Sift
Uncertain
0.013
D;D;D;D;D;.;.
Sift4G
Uncertain
0.0060
D;D;D;D;D;D;D
Polyphen
0.77
P;B;.;.;.;.;.
Vest4
0.22
MutPred
0.44
Gain of ubiquitination at K392 (P = 0.0828);.;.;.;.;.;.;
MVP
0.49
MPC
0.45
ClinPred
0.93
D
GERP RS
4.9
Varity_R
0.36
gMVP
0.44

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: rs373273554; hg19: chr18-6873730; API