Variant chr17-75239952-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_138619.4(GGA3):c.1420G>A(p.Val474Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000538 in 1,579,276 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

GGA3
NM_138619.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0870

Variant links:

Genes affected

GGA3 (HGNC:17079): (golgi associated, gamma adaptin ear containing, ARF binding protein 3) This gene encodes a member of the Golgi-localized, gamma adaptin ear-containing, ARF-binding (GGA) family. This family includes ubiquitous coat proteins that regulate the trafficking of proteins between the trans-Golgi network and the lysosome. These proteins share an amino-terminal VHS domain which mediates sorting of the mannose 6-phosphate receptors at the trans-Golgi network. They also contain a carboxy-terminal region with homology to the ear domain of gamma-adaptins. Multiple alternatively spliced transcript variants have been identified in this gene. [provided by RefSeq, Feb 2010]

GGA3 links:

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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=0.014236957).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GGA3	NM_138619.4 linkuse as main transcript	c.1420G>A	p.Val474Ile	missense_variant	13/17	ENST00000537686.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GGA3	ENST00000537686.6 linkuse as main transcript	c.1420G>A	p.Val474Ile	missense_variant	13/17	1	NM_138619.4	P1	Q9NZ52-1

Frequencies

GnomAD3 genomes

AF:

0.000302

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00109

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000897

AC:

AN:

189618

Hom.:

AF XY:

0.0000490

AC XY:

AN XY:

102134

show subpopulations

Gnomad AFR exome

AF:

0.00125

Gnomad AMR exome

AF:

0.000110

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000273

AC:

AN:

1427064

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

707220

show subpopulations

Gnomad4 AFR exome

AF:

0.00102

Gnomad4 AMR exome

AF:

0.000104

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:

0.00000183

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000302

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00109

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000231

Hom.:

Bravo

AF:

0.000340

ESP6500AA

AF:

0.000914

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000503

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

Dec 13, 2023

The c.1420G>A (p.V474I) alteration is located in exon 13 (coding exon 13) of the GGA3 gene. This alteration results from a G to A substitution at nucleotide position 1420, causing the valine (V) at amino acid position 474 to be replaced by an isoleucine (I). 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

0.065

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.71

CADD

Benign

3.5

DANN

Benign

0.82

DEOGEN2

Benign

0.027

.;T;.;.;.

Eigen

Benign

-0.97

Eigen_PC

Benign

-0.98

FATHMM_MKL

Benign

0.079

LIST_S2

Benign

0.69

T;.;T;T;T

M_CAP

Benign

0.0099

MetaRNN

Benign

0.014

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

.;L;.;.;.

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Benign

0.41

REVEL

Benign

0.016

Sift4G

Benign

0.61

T;T;T;T;T

Polyphen

0.0010

B;B;.;.;.

Vest4

0.10

MVP

0.18

ClinPred

0.0036

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.032

gMVP

0.15

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