Variant 11-78221679-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_080491.3(GAB2):c.1759A>G(p.Met587Val) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000033 in 1,604,720 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

GAB2
NM_080491.3 missense, splice_region

Scores

Splicing: ADA: 0.001714

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.61

Variant links:

Genes affected

GAB2 (HGNC:14458): (GRB2 associated binding protein 2) This gene is a member of the GRB2-associated binding protein (GAB) gene family. These proteins contain pleckstrin homology (PH) domain, and bind SHP2 tyrosine phosphatase and GRB2 adapter protein. They act as adapters for transmitting various signals in response to stimuli through cytokine and growth factor receptors, and T- and B-cell antigen receptors. The protein encoded by this gene is the principal activator of phosphatidylinositol-3 kinase in response to activation of the high affinity IgE receptor. Two alternatively spliced transcripts encoding different isoforms have been described for this gene. [provided by RefSeq, Nov 2009]

GAB2 links:

USP35 (HGNC:):

USP35 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 24 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GAB2	NM_080491.3 linkuse as main transcript	c.1759A>G	p.Met587Val	missense_variant, splice_region_variant	8/10	ENST00000361507.5	NP_536739.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GAB2	ENST00000361507.5 linkuse as main transcript	c.1759A>G	p.Met587Val	missense_variant, splice_region_variant	8/10	1	NM_080491.3	ENSP00000354952	P1	Q9UQC2-1
GAB2	ENST00000340149.6 linkuse as main transcript	c.1645A>G	p.Met549Val	missense_variant, splice_region_variant	8/10	1		ENSP00000343959		Q9UQC2-2

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152102

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000507

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

250660

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135454

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.0000290

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:

0.0000200

AC:

AN:

1452500

Hom.:

Cov.:

AF XY:

0.0000207

AC XY:

AN XY:

723192

show subpopulations

Gnomad4 AFR exome

AF:

0.000662

Gnomad4 AMR exome

AF:

0.0000448

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:

0.00000362

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.000158

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.000506

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:

0.000473

Alfa

AF:

0.000133

Hom.:

Bravo

AF:

0.000151

ESP6500AA

AF:

0.000682

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000412

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 15, 2023

The c.1759A>G (p.M587V) alteration is located in exon 8 (coding exon 8) of the GAB2 gene. This alteration results from a A to G substitution at nucleotide position 1759, causing the methionine (M) at amino acid position 587 to be replaced by a valine (V). 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

Uncertain

0.35

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.91

.;D

Eigen

Benign

0.021

Eigen_PC

Benign

0.10

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.83

T;T

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.44

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.8

.;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.16

Sift

Uncertain

0.0050

D;D

Sift4G

Uncertain

0.011

D;D

Polyphen

0.28

.;B

Vest4

0.81

MVP

0.68

MPC

0.091

ClinPred

0.28

GERP RS

3.6

Varity_R

0.47

gMVP

0.53

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0017

dbscSNV1_RF

Benign

0.038

SpliceAI score (max)

0.010

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