4-85570719-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001025616.3(ARHGAP24):ā€‹c.178T>Gā€‹(p.Leu60Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,794 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

ARHGAP24
NM_001025616.3 missense, splice_region

Scores

8
11
Splicing: ADA: 0.01321
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.87
Variant links:
Genes affected
ARHGAP24 (HGNC:25361): (Rho GTPase activating protein 24) This gene encodes a Rho-GTPase activating protein, which is specific for the small GTPase family member Rac. Binding of the encoded protein by filamin A targets it to sites of membrane protrusion, where it antognizes Rac. This results in suppression of lamellae formation and promotion of retraction to regulate cell polarity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARHGAP24NM_001025616.3 linkc.178T>G p.Leu60Val missense_variant, splice_region_variant 2/10 ENST00000395184.6 NP_001020787.2 Q8N264-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARHGAP24ENST00000395184.6 linkc.178T>G p.Leu60Val missense_variant, splice_region_variant 2/102 NM_001025616.3 ENSP00000378611.1 Q8N264-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251384
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135872
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:
0.00000205
AC:
3
AN:
1461794
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727202
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
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 provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 10, 2022ClinVar contains an entry for this variant (Variation ID: 1427945). 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 are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with ARHGAP24-related conditions. This variant is present in population databases (rs777466544, gnomAD 0.0009%). This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 60 of the ARHGAP24 protein (p.Leu60Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Benign
-0.054
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;.
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.016
T
MetaRNN
Uncertain
0.46
T;T
MetaSVM
Benign
-1.2
T
MutationAssessor
Benign
1.4
L;L
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.74
N;N
REVEL
Benign
0.15
Sift
Benign
0.083
T;T
Sift4G
Benign
0.067
T;T
Polyphen
0.99
D;P
Vest4
0.59
MutPred
0.37
Loss of glycosylation at T62 (P = 0.0372);Loss of glycosylation at T62 (P = 0.0372);
MVP
0.48
MPC
0.20
ClinPred
0.71
D
GERP RS
3.5
Varity_R
0.11
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.013
dbscSNV1_RF
Benign
0.13
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs777466544; hg19: chr4-86491872; API