5-149026576-C-T

Variant summary

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

The NM_024577.4(SH3TC2):​c.3049G>A​(p.Ala1017Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000177 in 1,613,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

SH3TC2
NM_024577.4 missense

Scores

1
18

Clinical Significance

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

Conservation

PhyloP100: 0.277

Publications

2 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

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=0.0072898865).
BP6
Variant 5-149026576-C-T is Benign according to our data. Variant chr5-149026576-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 351901.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000217 (33/152298) while in subpopulation EAS AF = 0.00483 (25/5178). AF 95% confidence interval is 0.00336. There are 0 homozygotes in GnomAd4. There are 21 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SH3TC2NM_024577.4 linkc.3049G>A p.Ala1017Thr missense_variant Exon 12 of 17 ENST00000515425.6 NP_078853.2 Q8TF17-1A0A514TP98

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SH3TC2ENST00000515425.6 linkc.3049G>A p.Ala1017Thr missense_variant Exon 12 of 17 1 NM_024577.4 ENSP00000423660.1 Q8TF17-1

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152180
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00482
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000314
AC:
79
AN:
251408
AF XY:
0.000280
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00359
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000173
AC:
253
AN:
1461602
Hom.:
0
Cov.:
30
AF XY:
0.000176
AC XY:
128
AN XY:
727116
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00494
AC:
196
AN:
39700
South Asian (SAS)
AF:
0.000255
AC:
22
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5554
European-Non Finnish (NFE)
AF:
0.0000216
AC:
24
AN:
1112004
Other (OTH)
AF:
0.000166
AC:
10
AN:
60368
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
16
33
49
66
82
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000217
AC:
33
AN:
152298
Hom.:
0
Cov.:
33
AF XY:
0.000282
AC XY:
21
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41566
American (AMR)
AF:
0.0000654
AC:
1
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00483
AC:
25
AN:
5178
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000243
Hom.:
0
Bravo
AF:
0.000219
ExAC
AF:
0.000305
AC:
37
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease type 4 Uncertain:1Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mononeuropathy of the Median Nerve Uncertain:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Benign:1
May 18, 2021
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1
Mar 26, 2019
Athena Diagnostics
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
0.073
BayesDel_addAF
Benign
-0.51
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
5.9
DANN
Benign
0.82
DEOGEN2
Benign
0.13
T;.
Eigen
Benign
-0.97
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.54
T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.0073
T;T
MetaSVM
Benign
-0.82
T
MutationAssessor
Benign
1.6
L;.
PhyloP100
0.28
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.54
N;N
REVEL
Benign
0.20
Sift
Benign
0.11
T;T
Sift4G
Benign
0.10
T;T
Polyphen
0.82
P;.
Vest4
0.089
MVP
0.62
MPC
0.041
ClinPred
0.015
T
GERP RS
-2.1
Varity_R
0.032
gMVP
0.042
Mutation Taster
=89/11
polymorphism

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

Other links and lift over

dbSNP: rs186029710; hg19: chr5-148406139; API