rs201805333

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_024577.4(SH3TC2):c.3166C>T(p.Leu1056Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000191 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

SH3TC2
NM_024577.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 5.44

Variant links:

Genes affected

SH3TC2 (HGNC:29427): (SH3 domain and tetratricopeptide repeats 2) This gene encodes a protein with two N-terminal Src homology 3 (SH3) domains and 10 tetratricopeptide repeat (TPR) motifs, and is a member of a small gene family. The gene product has been proposed to be an adapter or docking molecule. Mutations in this gene result in autosomal recessive Charcot-Marie-Tooth disease type 4C, a childhood-onset neurodegenerative disease characterized by demyelination of motor and sensory neurons. [provided by RefSeq, Jul 2008]

SH3TC2 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
SH3TC2	NM_024577.4 link	c.3166C>T	p.Leu1056Phe	missense_variant	Exon 13 of 17	ENST00000515425.6	NP_078853.2	Q8TF17-1A0A514TP98

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SH3TC2	ENST00000515425.6 link	c.3166C>T	p.Leu1056Phe	missense_variant	Exon 13 of 17	1	NM_024577.4	ENSP00000423660.1		Q8TF17-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000836

AC:

AN:

251298

Hom.:

AF XY:

0.0000736

AC XY:

AN XY:

135830

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000167

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000204

AC:

298

AN:

1461890

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

133

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000243

Gnomad4 OTH exome

AF:

0.000464

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000181

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Oct 28, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Reported previously as a variant of uncertain significance in a cohort of individuals referred for genetic testing of CMT related genes; however, no specific clinical information was provided (PMID: 25614874); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 24448499, 25614874) -

Sep 27, 2018

Athena Diagnostics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 29, 2021

Mayo Clinic Laboratories, Mayo Clinic

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Mar 23, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.L1056F variant (also known as c.3166C>T), located in coding exon 13 of the SH3TC2 gene, results from a C to T substitution at nucleotide position 3166. The leucine at codon 1056 is replaced by phenylalanine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Charcot-Marie-Tooth disease type 4

Benign:1

Oct 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.095

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.24

T;.

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.83

T;T

M_CAP

Benign

0.039

MetaRNN

Uncertain

0.52

D;D

MetaSVM

Uncertain

0.19

MutationAssessor

Uncertain

2.4

M;.

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.8

D;D

REVEL

Uncertain

0.46

Sift

Uncertain

0.013

D;D

Sift4G

Uncertain

0.026

D;D

Polyphen

1.0

D;.

Vest4

0.46

MVP

0.90

MPC

0.059

ClinPred

0.36

GERP RS

5.7

Varity_R

0.42

gMVP

0.30

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.

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