Variant chr16-23480701-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_015044.4(GGA2):c.950G>A(p.Arg317Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000345 in 1,612,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R317W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00035 ( 0 hom. )

Consequence

GGA2
NM_015044.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.17

Variant links:

Genes affected

GGA2 (HGNC:16064): (golgi associated, gamma adaptin ear containing, ARF binding protein 2) 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. This family member may play a significant role in cargo molecules regulation and clathrin-coated vesicle assembly. [provided by RefSeq, Jul 2008]

GGA2 links:

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=0.032643646).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
GGA2	NM_015044.4 linkuse as main transcript	c.950G>A	p.Arg317Gln	missense_variant	10/17	ENST00000309859.8
GGA2	XM_047433801.1 linkuse as main transcript	c.920G>A	p.Arg307Gln	missense_variant	11/18
GGA2	XM_047433802.1 linkuse as main transcript	c.839G>A	p.Arg280Gln	missense_variant	10/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GGA2	ENST00000309859.8 linkuse as main transcript	c.950G>A	p.Arg317Gln	missense_variant	10/17	1	NM_015044.4	P1
GGA2	ENST00000567468.5 linkuse as main transcript	c.624+6045G>A		intron_variant		2

Frequencies

GnomAD3 genomes

AF:

0.000315

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

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:

0.000470

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000267

AC:

AN:

251186

Hom.:

AF XY:

0.000309

AC XY:

AN XY:

135742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000173

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000502

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000349

AC:

509

AN:

1460546

Hom.:

Cov.:

AF XY:

0.000362

AC XY:

263

AN XY:

726616

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000268

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000418

Gnomad4 OTH exome

AF:

0.000398

GnomAD4 genome

AF:

0.000315

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000470

Gnomad4 OTH

AF:

0.00239

Alfa

AF:

0.000552

Hom.:

Bravo

AF:

0.000431

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000982

EpiControl

AF:

0.000711

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 26, 2023

The c.950G>A (p.R317Q) alteration is located in exon 10 (coding exon 10) of the GGA2 gene. This alteration results from a G to A substitution at nucleotide position 950, causing the arginine (R) at amino acid position 317 to be replaced by a glutamine (Q). 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

0.070

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Benign

0.37

DEOGEN2

Benign

0.082

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.40

FATHMM_MKL

Benign

0.26

LIST_S2

Benign

0.80

M_CAP

Benign

0.0050

MetaRNN

Benign

0.033

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-1.5

MutationTaster

Benign

0.65

D;D

PrimateAI

Benign

0.39

PROVEAN

Benign

1.9

REVEL

Benign

0.061

Sift

Benign

0.76

Sift4G

Benign

0.99

Polyphen

0.31

Vest4

0.13

MVP

0.16

MPC

0.17

ClinPred

0.026

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.027

gMVP

0.13

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