11-78222180-A-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_080491.3(GAB2):ā€‹c.1583T>Cā€‹(p.Leu528Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000062 ( 0 hom. )

Consequence

GAB2
NM_080491.3 missense

Scores

7
6
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.95
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.791
BS2
High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GAB2NM_080491.3 linkuse as main transcriptc.1583T>C p.Leu528Pro missense_variant 7/10 ENST00000361507.5 NP_536739.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GAB2ENST00000361507.5 linkuse as main transcriptc.1583T>C p.Leu528Pro missense_variant 7/101 NM_080491.3 ENSP00000354952 P1Q9UQC2-1
GAB2ENST00000340149.6 linkuse as main transcriptc.1469T>C p.Leu490Pro missense_variant 7/101 ENSP00000343959 Q9UQC2-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251460
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135906
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
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:
0.00000616
AC:
9
AN:
1461274
Hom.:
0
Cov.:
30
AF XY:
0.00000688
AC XY:
5
AN XY:
727000
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000201
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
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:
0.00
Bravo
AF:
0.0000491
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsApr 12, 2022The c.1583T>C (p.L528P) alteration is located in exon 7 (coding exon 7) of the GAB2 gene. This alteration results from a T to C substitution at nucleotide position 1583, causing the leucine (L) at amino acid position 528 to be replaced by a proline (P). 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
Pathogenic
0.64
BayesDel_addAF
Uncertain
0.031
T
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
.;D
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Benign
0.66
T;T
M_CAP
Benign
0.041
D
MetaRNN
Pathogenic
0.79
D;D
MetaSVM
Benign
-0.75
T
MutationAssessor
Uncertain
2.4
.;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-4.5
D;D
REVEL
Uncertain
0.35
Sift
Benign
0.076
T;T
Sift4G
Benign
0.094
T;T
Polyphen
1.0
.;D
Vest4
0.94
MutPred
0.13
.;Gain of glycosylation at L528 (P = 0.0138);
MVP
0.65
MPC
0.10
ClinPred
0.53
D
GERP RS
5.5
Varity_R
0.72
gMVP
0.65

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.

Other links and lift over

dbSNP: rs760849154; hg19: chr11-77933226; API