Variant X-154699507-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001081573.3(GAB3):c.1132A>T(p.Arg378Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,203,789 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 22)

Exomes 𝑓: 0.000012 ( 0 hom. 3 hem. )

Consequence

GAB3
NM_001081573.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.763

Variant links:

Genes affected

GAB3 (HGNC:17515): (GRB2 associated binding protein 3) This gene is a member of the GRB2-associated binding protein gene family. These proteins are scaffolding/docking proteins that are involved in several growth factor and cytokine signaling pathways, and they contain a pleckstrin homology domain, and bind SHP2 tyrosine phosphatase and GRB2 adapter protein. The protein encoded by this gene facilitates macrophage differentiation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

GAB3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.16419354).

BS2

High Hemizygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GAB3	NM_001081573.3 linkuse as main transcript	c.1132A>T	p.Arg378Trp	missense_variant	6/10	ENST00000424127.3	NP_001075042.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GAB3	ENST00000424127.3 linkuse as main transcript	c.1132A>T	p.Arg378Trp	missense_variant	6/10	1	NM_001081573.3	ENSP00000399588	A2	Q8WWW8-2
GAB3	ENST00000369575.7 linkuse as main transcript	c.1129A>T	p.Arg377Trp	missense_variant	6/10	1		ENSP00000358588	P4	Q8WWW8-1
GAB3	ENST00000496390.5 linkuse as main transcript	n.679A>T		non_coding_transcript_exon_variant	5/9	1
GAB3	ENST00000369568.8 linkuse as main transcript	c.1132A>T	p.Arg378Trp	missense_variant	6/9	2		ENSP00000358581	A2	Q8WWW8-3

Frequencies

GnomAD3 genomes

AF:

0.00000890

AC:

AN:

112360

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

34506

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:

0.000369

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000168

AC:

AN:

178052

Hom.:

AF XY:

0.0000158

AC XY:

AN XY:

63406

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:

0.000164

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000119

AC:

AN:

1091429

Hom.:

Cov.:

AF XY:

0.00000840

AC XY:

AN XY:

357119

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:

0.000243

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000890

AC:

AN:

112360

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

34506

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000369

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

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

Jun 03, 2022

The c.1132A>T (p.R378W) alteration is located in exon 6 (coding exon 6) of the GAB3 gene. This alteration results from a A to T substitution at nucleotide position 1132, causing the arginine (R) at amino acid position 378 to be replaced by a tryptophan (W). 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

0.11

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

D;.;.

FATHMM_MKL

Benign

0.14

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.033

MetaRNN

Benign

0.16

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

2.9

M;.;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.35

PROVEAN

Uncertain

-4.2

D;D;D

REVEL

Benign

0.10

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.0060

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.32

MutPred

0.48

Loss of disorder (P = 0.0062);.;.;

MVP

0.41

MPC

0.95

ClinPred

0.82

GERP RS

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.32

gMVP

0.52

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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