20-63287565-C-T

Variant summary

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

The ENST00000370283.9(ARFGAP1):​c.913C>T​(p.Pro305Ser) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000626 in 1,581,452 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

ARFGAP1
ENST00000370283.9 missense, splice_region

Scores

18
Splicing: ADA: 0.00006097
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.12
Variant links:
Genes affected
ARFGAP1 (HGNC:15852): (ADP ribosylation factor GTPase activating protein 1) The protein encoded by this gene is a GTPase-activating protein, which associates with the Golgi apparatus and which interacts with ADP-ribosylation factor 1. The encoded protein promotes hydrolysis of ADP-ribosylation factor 1-bound GTP and is required for the dissociation of coat proteins from Golgi-derived membranes and vesicles. Dissociation of the coat proteins is required for the fusion of these vesicles with target compartments. The activity of this protein is stimulated by phosphoinosides and inhibited by phosphatidylcholine. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

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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=0.014875114).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARFGAP1NM_018209.4 linkuse as main transcriptc.913C>T p.Pro305Ser missense_variant, splice_region_variant 13/13 ENST00000370283.9 NP_060679.1 Q8N6T3-1Q53F62

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARFGAP1ENST00000370283.9 linkuse as main transcriptc.913C>T p.Pro305Ser missense_variant, splice_region_variant 13/131 NM_018209.4 ENSP00000359306.4 Q8N6T3-1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152108
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00109
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000102
AC:
24
AN:
235640
Hom.:
0
AF XY:
0.0000622
AC XY:
8
AN XY:
128620
show subpopulations
Gnomad AFR exome
AF:
0.00114
Gnomad AMR exome
AF:
0.0000638
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000103
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000179
GnomAD4 exome
AF:
0.0000371
AC:
53
AN:
1429226
Hom.:
0
Cov.:
31
AF XY:
0.0000368
AC XY:
26
AN XY:
706982
show subpopulations
Gnomad4 AFR exome
AF:
0.00121
Gnomad4 AMR exome
AF:
0.0000736
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000827
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000682
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152226
Hom.:
0
Cov.:
33
AF XY:
0.000336
AC XY:
25
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.00108
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000129
Hom.:
0
Bravo
AF:
0.000434
ESP6500AA
AF:
0.00204
AC:
9
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000149
AC:
18

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 GeneticsAug 28, 2023The c.937C>T (p.P313S) alteration is located in exon 14 (coding exon 13) of the ARFGAP1 gene. This alteration results from a C to T substitution at nucleotide position 937, causing the proline (P) at amino acid position 313 to be replaced by a serine (S). 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
0.059
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
3.5
DANN
Benign
0.84
DEOGEN2
Benign
0.011
.;.;T;.;T;T;.
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.98
FATHMM_MKL
Benign
0.28
N
LIST_S2
Benign
0.64
T;T;T;T;T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.015
T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.70
N;N;N;N;N;N;N
REVEL
Benign
0.065
Sift
Benign
0.32
T;T;T;T;T;T;T
Sift4G
Benign
0.38
T;T;T;T;T;T;T
Polyphen
0.0010
.;.;B;.;.;.;B
Vest4
0.11
MVP
0.26
MPC
0.13
ClinPred
0.011
T
GERP RS
0.46
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.014
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000061
dbscSNV1_RF
Benign
0.0060
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: rs151256666; hg19: chr20-61918917; API