12-111446813-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005475.3(SH2B3):c.793C>T(p.Arg265Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000196 in 1,580,740 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R265Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

SH2B3
NM_005475.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.57

Publications

1 publications found

Variant links:

Genes affected

SH2B3 (HGNC:29605): (SH2B adaptor protein 3) This gene encodes a member of the SH2B adaptor family of proteins, which are involved in a range of signaling activities by growth factor and cytokine receptors. The encoded protein is a key negative regulator of cytokine signaling and plays a critical role in hematopoiesis. Mutations in this gene have been associated with susceptibility to celiac disease type 13 and susceptibility to insulin-dependent diabetes mellitus. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

SH2B3 links:

ATXN2 (HGNC:10555): (ataxin 2) This gene belongs to a group of genes that is associated with microsatellite-expansion diseases, a class of neurological and neuromuscular disorders caused by expansion of short stretches of repetitive DNA. The protein encoded by this gene has two globular domains near the N-terminus, one of which contains a clathrin-mediated trans-Golgi signal and an endoplasmic reticulum exit signal. The encoded cytoplasmic protein localizes to the endoplasmic reticulum and plasma membrane, is involved in endocytosis, and modulates mTOR signals, modifying ribosomal translation and mitochondrial function. The N-terminal region of the protein contains a polyglutamine tract of 14-31 residues that can be expanded in the pathogenic state to 32-200 residues. Intermediate length expansions of this tract increase susceptibility to amyotrophic lateral sclerosis, while long expansions of this tract result in spinocerebellar ataxia-2, an autosomal-dominantly inherited, neurodegenerative disorder. Genome-wide association studies indicate that loss-of-function mutations in this gene may be associated with susceptibility to type I diabetes, obesity and hypertension. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

ATXN2 Gene-Disease associations (from GenCC):

spinocerebellar ataxia type 2
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

ATXN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
SH2B3	NM_005475.3 link	c.793C>T	p.Arg265Trp	missense_variant	Exon 3 of 8	ENST00000341259.7	NP_005466.1	Q9UQQ2Q59H48

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SH2B3	ENST00000341259.7 link	c.793C>T	p.Arg265Trp	missense_variant	Exon 3 of 8	1	NM_005475.3	ENSP00000345492.2	Q9UQQ2
SH2B3	ENST00000538307.1 link	c.187C>T	p.Arg63Trp	missense_variant	Exon 2 of 7	2		ENSP00000440597.1	F5GYM4
ATXN2	ENST00000642389.2 link	n.*171-2626G>A		intron_variant	Intron 26 of 26			ENSP00000496055.2	A0A2R8Y7E6

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152174

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:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000397

AC:

AN:

226932

AF XY:

0.0000414

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000152

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000547

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000975

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000203

AC:

AN:

1428448

Hom.:

Cov.:

AF XY:

0.0000198

AC XY:

AN XY:

705756

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33042

American (AMR)

AF:

0.000139

AC:

AN:

43016

Ashkenazi Jewish (ASJ)

AF:

0.0000844

AC:

AN:

23686

East Asian (EAS)

AF:

0.0000508

AC:

AN:

39364

South Asian (SAS)

AF:

0.0000499

AC:

AN:

80164

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52080

Middle Eastern (MID)

AF:

0.000356

AC:

AN:

5614

European-Non Finnish (NFE)

AF:

0.0000110

AC:

AN:

1092488

Other (OTH)

AF:

0.0000170

AC:

AN:

58994

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152292

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74466

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41566

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5176

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000495

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.040

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.82

D;.

Eigen

Benign

0.15

Eigen_PC

Benign

0.064

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.93

D;D

M_CAP

Uncertain

0.18

MetaRNN

Uncertain

0.72

D;D

MetaSVM

Uncertain

-0.085

MutationAssessor

Uncertain

2.3

M;.

PhyloP100

5.6

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-4.4

D;D

REVEL

Uncertain

0.39

Sift

Benign

0.030

D;D

Sift4G

Uncertain

0.015

D;D

Polyphen

1.0

D;D

Vest4

0.66

MutPred

0.63

Gain of catalytic residue at M268 (P = 0.0061);.;

MVP

0.93

MPC

0.39

ClinPred

0.91

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.26

gMVP

0.57

Mutation Taster

=58/42

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

12-111446813-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over