rs144873879

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_024577.4(SH3TC2):​c.3795G>C​(p.Leu1265Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00186 in 1,614,148 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. L1265L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0013 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0019 ( 4 hom. )

Consequence

SH3TC2
NM_024577.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:11

Conservation

PhyloP100: 2.10

Publications

0 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), Ambry Genetics, Orphanet
  • susceptibility to mononeuropathy of the median nerve, mild
    Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 5-149004783-C-G is Benign according to our data. Variant chr5-149004783-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 351896.
BP7
Synonymous conserved (PhyloP=2.1 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00134 (204/152302) while in subpopulation NFE AF = 0.00247 (168/68026). AF 95% confidence interval is 0.00216. There are 1 homozygotes in GnomAd4. There are 86 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 4 AR,AD gene

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SH3TC2
NM_024577.4
MANE Select
c.3795G>Cp.Leu1265Leu
synonymous
Exon 17 of 17NP_078853.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SH3TC2
ENST00000515425.6
TSL:1 MANE Select
c.3795G>Cp.Leu1265Leu
synonymous
Exon 17 of 17ENSP00000423660.1Q8TF17-1
SH3TC2
ENST00000512049.5
TSL:1
c.3774G>Cp.Leu1258Leu
synonymous
Exon 17 of 17ENSP00000421860.1Q8TF17-5
SH3TC2
ENST00000323829.9
TSL:1
n.*3183G>C
non_coding_transcript_exon
Exon 18 of 18ENSP00000313025.5D6RA65

Frequencies

GnomAD3 genomes
AF:
0.00134
AC:
204
AN:
152184
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.000753
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00247
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00139
AC:
350
AN:
251014
AF XY:
0.00145
show subpopulations
Gnomad AFR exome
AF:
0.000247
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00106
Gnomad NFE exome
AF:
0.00240
Gnomad OTH exome
AF:
0.000654
GnomAD4 exome
AF:
0.00191
AC:
2798
AN:
1461846
Hom.:
4
Cov.:
31
AF XY:
0.00196
AC XY:
1425
AN XY:
727226
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33480
American (AMR)
AF:
0.000358
AC:
16
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.0000765
AC:
2
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00145
AC:
125
AN:
86248
European-Finnish (FIN)
AF:
0.00122
AC:
65
AN:
53410
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5756
European-Non Finnish (NFE)
AF:
0.00224
AC:
2494
AN:
1112002
Other (OTH)
AF:
0.00132
AC:
80
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
184
369
553
738
922
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
84
168
252
336
420
<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:
0.00134
AC:
204
AN:
152302
Hom.:
1
Cov.:
32
AF XY:
0.00115
AC XY:
86
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.000240
AC:
10
AN:
41582
American (AMR)
AF:
0.000392
AC:
6
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5150
South Asian (SAS)
AF:
0.00166
AC:
8
AN:
4828
European-Finnish (FIN)
AF:
0.000753
AC:
8
AN:
10618
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.00247
AC:
168
AN:
68026
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
10
20
31
41
51
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00128
Hom.:
0
Bravo
AF:
0.00116
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00349
EpiControl
AF:
0.00267

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
4
not provided (5)
-
-
2
not specified (2)
-
-
1
Charcot-Marie-Tooth disease (1)
-
-
1
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Charcot-Marie-Tooth disease type 4C (1)
-
-
1
Inborn genetic diseases (1)
-
-
1
SH3TC2-related disorder (1)
-
-
1
Susceptibility to mononeuropathy of the median nerve, mild (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
3.9
DANN
Benign
0.68
PhyloP100
2.1
Mutation Taster
=88/12
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: rs144873879; hg19: chr5-148384346; API