Genetic Variant SH3GLB2:p.Ala206Thr (chr9-129012244-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020145.4(SH3GLB2):c.616G>A(p.Ala206Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000201 in 1,293,558 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

SH3GLB2
NM_020145.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.90

Variant links:

Genes affected

SH3GLB2 (HGNC:10834): (SH3 domain containing GRB2 like, endophilin B2) Enables identical protein binding activity. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

SH3GLB2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SH3GLB2	NM_020145.4 link	c.616G>A	p.Ala206Thr	missense_variant	Exon 6 of 11	ENST00000372564.8	NP_064530.1	Q9NR46-1A0A024R896

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SH3GLB2	ENST00000372564.8 link	c.616G>A	p.Ala206Thr	missense_variant	Exon 6 of 11	1	NM_020145.4	ENSP00000361645.3		Q9NR46-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151852

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:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000210

AC:

AN:

1141706

Hom.:

Cov.:

AF XY:

0.0000221

AC XY:

AN XY:

544134

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000137

Gnomad4 SAS exome

AF:

0.0000371

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000201

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151852

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74142

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.00000869

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.616G>A (p.A206T) alteration is located in exon 6 (coding exon 6) of the SH3GLB2 gene. This alteration results from a G to A substitution at nucleotide position 616, causing the alanine (A) at amino acid position 206 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

Uncertain

0.38

BayesDel_addAF

Uncertain

0.068

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.054

T;T;.;T

Eigen

Uncertain

0.67

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

.;D;D;D

M_CAP

Benign

0.043

MetaRNN

Uncertain

0.70

D;D;D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

M;M;.;.

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

-0.70

N;N;N;N

REVEL

Benign

0.23

Sift

Benign

0.26

T;T;D;T

Sift4G

Benign

0.40

T;T;T;T

Polyphen

0.81

P;P;D;.

Vest4

0.77

MutPred

0.60

Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);.;Gain of helix (P = 0.0696);

MVP

0.45

MPC

0.93

ClinPred

0.86

GERP RS

5.8

Varity_R

0.12

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

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