Variant chr22-42822338-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014570.5(ARFGAP3):c.744A>T(p.Gln248His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ARFGAP3
NM_014570.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.480

Variant links:

Genes affected

ARFGAP3 (HGNC:661): (ADP ribosylation factor GTPase activating protein 3) The protein encoded by this gene is a GTPase-activating protein (GAP) that associates with the Golgi apparatus and regulates the early secretory pathway of proteins. The encoded protein promotes hydrolysis of ADP-ribosylation factor 1 (ARF1)-bound GTP, which is required for the dissociation of coat proteins from Golgi-derived membranes and vesicles. Dissociation of the coat proteins is a prerequisite for the fusion of these vesicles with target compartments. The activity of this protein is sensitive to phospholipids. Multiple transcript variants encoding different isoforms have been found for this gene. This gene was originally known as ARFGAP1, but that is now the name of a related but different gene. [provided by RefSeq, Nov 2008]

ARFGAP3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2148999).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ARFGAP3	NM_014570.5 linkuse as main transcript	c.744A>T	p.Gln248His	missense_variant	9/16	ENST00000263245.10
ARFGAP3	NM_001142293.2 linkuse as main transcript	c.612A>T	p.Gln204His	missense_variant	8/15
ARFGAP3	XM_005261525.5 linkuse as main transcript	c.744A>T	p.Gln248His	missense_variant	9/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARFGAP3	ENST00000263245.10 linkuse as main transcript	c.744A>T	p.Gln248His	missense_variant	9/16	1	NM_014570.5	P1	Q9NP61-1
ARFGAP3	ENST00000437119.6 linkuse as main transcript	c.612A>T	p.Gln204His	missense_variant	8/15	1			Q9NP61-2
ARFGAP3	ENST00000453516.5 linkuse as main transcript	c.285A>T	p.Gln95His	missense_variant	4/8	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251414

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135876

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727238

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

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 submitter

clinical testing

Ambry Genetics

Mar 17, 2023

The c.744A>T (p.Q248H) alteration is located in exon 9 (coding exon 9) of the ARFGAP3 gene. This alteration results from a A to T substitution at nucleotide position 744, causing the glutamine (Q) at amino acid position 248 to be replaced by a histidine (H). 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

0.20

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.087

T;.

Eigen

Benign

-0.099

Eigen_PC

Benign

-0.072

FATHMM_MKL

Uncertain

0.76

LIST_S2

Uncertain

0.94

D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.21

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.3

M;.

MutationTaster

Benign

0.94

D;D;D

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.2

D;D

REVEL

Benign

0.11

Sift

Benign

0.043

D;D

Sift4G

Benign

0.097

T;T

Polyphen

0.19

B;.

Vest4

0.50

MutPred

0.34

Loss of methylation at K247 (P = 0.1739);.;

MVP

0.26

MPC

0.13

ClinPred

0.97

GERP RS

0.74

Varity_R

0.20

gMVP

0.32

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over