Variant 4-143438001-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002039.4(GAB1):c.596C>T(p.Thr199Met) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000503 in 1,608,958 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000052 ( 1 hom. )

Consequence

GAB1
NM_002039.4 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.43

Variant links:

Genes affected

GAB1 (HGNC:4066): (GRB2 associated binding protein 1) The protein encoded by this gene is a member of the IRS1-like multisubstrate docking protein family. It is an important mediator of branching tubulogenesis and plays a central role in cellular growth response, transformation and apoptosis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

GAB1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07688573).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GAB1	NM_002039.4 linkuse as main transcript	c.596C>T	p.Thr199Met	missense_variant, splice_region_variant	4/10	ENST00000262994.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GAB1	ENST00000262994.9 linkuse as main transcript	c.596C>T	p.Thr199Met	missense_variant, splice_region_variant	4/10	1	NM_002039.4	A1	Q13480-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000113

AC:

AN:

247464

Hom.:

AF XY:

0.000157

AC XY:

AN XY:

134096

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:

0.000601

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000891

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000522

AC:

AN:

1456796

Hom.:

Cov.:

AF XY:

0.0000649

AC XY:

AN XY:

724226

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000502

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000261

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000115

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000906

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

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

Sep 27, 2022

The c.596C>T (p.T199M) alteration is located in exon 4 (coding exon 4) of the GAB1 gene. This alteration results from a C to T substitution at nucleotide position 596, causing the threonine (T) at amino acid position 199 to be replaced by a methionine (M). 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

-0.42

BayesDel_noAF

Benign

-0.49

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.095

Eigen_PC

Benign

0.026

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.87

D;D;T;D

M_CAP

Benign

0.0079

MetaRNN

Benign

0.077

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

L;L;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.42

PROVEAN

Benign

-0.93

N;N;N;N

REVEL

Benign

0.078

Sift

Uncertain

0.021

D;D;T;D

Sift4G

Benign

0.098

T;D;T;D

Polyphen

0.029

B;P;.;.

Vest4

0.12

MVP

0.31

MPC

0.42

ClinPred

0.096

GERP RS

5.1

Varity_R

0.064

gMVP

0.17

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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