rs10077543

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_024577.4(SH3TC2):c.1483A>G(p.Thr495Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000973 in 1,613,726 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T495S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

SH3TC2
NM_024577.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 1.03

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive hereditary demyelinating motor and sensory neuropathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
Charcot-Marie-Tooth disease type 4C
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
susceptibility to mononeuropathy of the median nerve, mild
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

SH3TC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024856657).

BP6

Variant 5-149028249-T-C is Benign according to our data. Variant chr5-149028249-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 407267.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000572 (87/152038) while in subpopulation AFR AF = 0.00198 (82/41482). AF 95% confidence interval is 0.00163. There are 0 homozygotes in GnomAd4. There are 42 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024577.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SH3TC2	NM_024577.4	MANE Select	c.1483A>G	p.Thr495Ala	missense	Exon 11 of 17	NP_078853.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SH3TC2	ENST00000515425.6	TSL:1 MANE Select	c.1483A>G	p.Thr495Ala	missense	Exon 11 of 17	ENSP00000423660.1
SH3TC2	ENST00000512049.5	TSL:1	c.1462A>G	p.Thr488Ala	missense	Exon 11 of 17	ENSP00000421860.1
SH3TC2	ENST00000323829.9	TSL:1	n.*871A>G		non_coding_transcript_exon	Exon 12 of 18	ENSP00000313025.5

Frequencies

GnomAD3 genomes

AF:

0.000566

AC:

AN:

151920

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00196

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.0000147

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000159

AC:

AN:

251182

AF XY:

0.000110

show subpopulations

Gnomad AFR exome

AF:

0.00210

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000479

AC:

AN:

1461688

Hom.:

Cov.:

AF XY:

0.0000440

AC XY:

AN XY:

727136

show subpopulations

African (AFR)

AF:

0.00167

AC:

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53224

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112004

Other (OTH)

AF:

0.000116

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000572

AC:

AN:

152038

Hom.:

Cov.:

AF XY:

0.000565

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.00198

AC:

AN:

41482

American (AMR)

AF:

0.000196

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5150

South Asian (SAS)

AF:

0.00

AC:

AN:

4804

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67958

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000280

Hom.:

Bravo

AF:

0.000669

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000189

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Charcot-Marie-Tooth disease (1)

Charcot-Marie-Tooth disease type 4 (1)

Inborn genetic diseases (1)

not specified (1)

SH3TC2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.054

Eigen

Benign

-0.15

Eigen_PC

Benign

0.043

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.69

M_CAP

Benign

0.022

MetaRNN

Benign

0.025

MetaSVM

Benign

-0.85

MutationAssessor

Benign

1.9

PhyloP100

1.0

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.59

REVEL

Benign

0.12

Sift

Benign

0.13

Sift4G

Benign

0.31

Polyphen

0.017

Vest4

0.36

MVP

0.76

MPC

0.040

ClinPred

0.014

GERP RS

3.5

Varity_R

0.058

gMVP

0.27

Mutation Taster

=91/9

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over