chr16-23478900-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_015044.4(GGA2):c.1141G>A(p.Ala381Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000517 in 1,605,200 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

GGA2
NM_015044.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.390

Publications

0 publications found

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 was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006027758).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GGA2	NM_015044.4 link	c.1141G>A	p.Ala381Thr	missense_variant	Exon 12 of 17	ENST00000309859.8	NP_055859.1	Q9UJY4
GGA2	XM_047433801.1 link	c.1111G>A	p.Ala371Thr	missense_variant	Exon 13 of 18		XP_047289757.1
GGA2	XM_047433802.1 link	c.1030G>A	p.Ala344Thr	missense_variant	Exon 12 of 17		XP_047289758.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GGA2	ENST00000309859.8 link	c.1141G>A	p.Ala381Thr	missense_variant	Exon 12 of 17	1	NM_015044.4	ENSP00000311962.4	Q9UJY4
GGA2	ENST00000569182.1 link	n.327G>A		non_coding_transcript_exon_variant	Exon 3 of 5	4
GGA2	ENST00000567468.6 link	c.624+7846G>A		intron_variant	Intron 7 of 7	2		ENSP00000454455.1	H3BMM6

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000152

AC:

AN:

250592

AF XY:

0.000199

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000558

AC:

AN:

1452876

Hom.:

Cov.:

AF XY:

0.0000816

AC XY:

AN XY:

723358

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33272

American (AMR)

AF:

0.000134

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26080

East Asian (EAS)

AF:

0.00

AC:

AN:

39654

South Asian (SAS)

AF:

0.000824

AC:

AN:

86118

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52970

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1104230

Other (OTH)

AF:

0.0000666

AC:

AN:

60092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.438

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41568

American (AMR)

AF:

0.00

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.000414

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000357

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 20, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1141G>A (p.A381T) alteration is located in exon 12 (coding exon 12) of the GGA2 gene. This alteration results from a G to A substitution at nucleotide position 1141, causing the alanine (A) at amino acid position 381 to be replaced by a threonine (T). 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

0.064

BayesDel_addAF

Benign

-0.68

BayesDel_noAF

Benign

-0.80

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.064

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.82

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.61

M_CAP

Benign

0.0041

MetaRNN

Benign

0.0060

MetaSVM

Benign

-0.93

MutationAssessor

Benign

0.69

PhyloP100

-0.39

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.27

REVEL

Benign

0.12

Sift

Benign

0.55

Sift4G

Benign

0.44

Polyphen

0.020

Vest4

0.050

MutPred

0.20

Gain of glycosylation at A381 (P = 0.028);

MVP

0.18

MPC

0.12

ClinPred

0.035

GERP RS

2.3

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.1

Varity_R

0.032

gMVP

0.22

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over