chr22-42807148-G-A

Position:

chr22-42807148-G-A

Variant summary

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

The NM_014570.5(ARFGAP3):c.1336C>T(p.Arg446Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000156 in 1,612,054 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

ARFGAP3
NM_014570.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.97

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:

Genome browser will be placed here

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
ARFGAP3	NM_014570.5 linkuse as main transcript	c.1336C>T	p.Arg446Cys	missense_variant	14/16	ENST00000263245.10	NP_055385.3	Q9NP61-1A0A024R4U0
ARFGAP3	NM_001142293.2 linkuse as main transcript	c.1204C>T	p.Arg402Cys	missense_variant	13/15		NP_001135765.1	Q9NP61-2
ARFGAP3	XM_005261525.5 linkuse as main transcript	c.1204C>T	p.Arg402Cys	missense_variant	13/15		XP_005261582.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ARFGAP3	ENST00000263245.10 linkuse as main transcript	c.1336C>T	p.Arg446Cys	missense_variant	14/16	1	NM_014570.5	ENSP00000263245.5	Q9NP61-1
ARFGAP3	ENST00000437119.6 linkuse as main transcript	c.1204C>T	p.Arg402Cys	missense_variant	13/15	1		ENSP00000388791.2	Q9NP61-2
ARFGAP3	ENST00000453516.5 linkuse as main transcript	c.742C>T	p.Arg248Cys	missense_variant	8/8	3		ENSP00000403995.1	H0Y6A0

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000606

AC:

AN:

247682

Hom.:

AF XY:

0.0000673

AC XY:

AN XY:

133744

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:

0.000134

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000162

AC:

236

AN:

1459766

Hom.:

Cov.:

AF XY:

0.000154

AC XY:

112

AN XY:

725986

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000225

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:

0.000194

Gnomad4 OTH exome

AF:

0.000249

GnomAD4 genome

AF:

0.000105

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.0000481

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:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000114

Hom.:

Bravo

AF:

0.0000945

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000330

AC:

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

Oct 17, 2024

The c.1336C>T (p.R446C) alteration is located in exon 14 (coding exon 14) of the ARFGAP3 gene. This alteration results from a C to T substitution at nucleotide position 1336, causing the arginine (R) at amino acid position 446 to be replaced by a cysteine (C). 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

0.19

BayesDel_addAF

Benign

-0.010

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.17

T;.

Eigen

Uncertain

0.68

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.70

D;D

MetaSVM

Benign

-0.96

MutationAssessor

Pathogenic

3.4

M;.

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-6.2

D;D

REVEL

Benign

0.26

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.0070

D;D

Polyphen

1.0

D;.

Vest4

0.81

MVP

0.54

MPC

0.56

ClinPred

0.96

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.55

gMVP

0.62

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