11-110579948-C-T

Variant summary

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

The NM_001384657.1(ARHGAP20):​c.2998G>A​(p.Gly1000Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000307 in 1,614,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

ARHGAP20
NM_001384657.1 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.308
Variant links:
Genes affected
ARHGAP20 (HGNC:18357): (Rho GTPase activating protein 20) The protein encoded by this gene is an activator of RHO-type GTPases, transducing a signal from RAP1 to RHO and impacting neurite outgrowth. [provided by RefSeq, Sep 2016]

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=0.022230476).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARHGAP20NM_001384657.1 linkuse as main transcriptc.2998G>A p.Gly1000Arg missense_variant 15/15 ENST00000683387.1 NP_001371586.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARHGAP20ENST00000683387.1 linkuse as main transcriptc.2998G>A p.Gly1000Arg missense_variant 15/15 NM_001384657.1 ENSP00000507405 P4Q9P2F6-1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000311
AC:
78
AN:
251196
Hom.:
0
AF XY:
0.000309
AC XY:
42
AN XY:
135736
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000599
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000322
AC:
471
AN:
1461874
Hom.:
0
Cov.:
33
AF XY:
0.000292
AC XY:
212
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000336
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000369
Gnomad4 OTH exome
AF:
0.000281
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152334
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000220
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000287
Hom.:
0
Bravo
AF:
0.000208
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000478
AC:
58
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000178

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 GeneticsOct 25, 2022The c.2998G>A (p.G1000R) alteration is located in exon 16 (coding exon 15) of the ARHGAP20 gene. This alteration results from a G to A substitution at nucleotide position 2998, causing the glycine (G) at amino acid position 1000 to be replaced by an arginine (R). 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
0.11
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
14
DANN
Benign
0.96
DEOGEN2
Benign
0.046
T;T;.;.;.;.
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.066
N
LIST_S2
Benign
0.86
D;D;D;.;D;D
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.022
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.0
M;.;.;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.80
N;N;N;N;N;N
REVEL
Benign
0.046
Sift
Uncertain
0.0020
D;D;D;D;D;D
Sift4G
Uncertain
0.0030
D;D;D;D;D;D
Polyphen
0.85
P;.;P;.;P;.
Vest4
0.052
MutPred
0.28
Gain of solvent accessibility (P = 6e-04);.;.;.;.;.;
MVP
0.43
MPC
0.13
ClinPred
0.036
T
GERP RS
3.0
Varity_R
0.13
gMVP
0.19

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: rs199551649; hg19: chr11-110450672; COSMIC: COSV99505682; API