chr5-149028330-C-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_024577.4(SH3TC2):​c.1402G>T​(p.Ala468Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.206 in 1,613,826 control chromosomes in the GnomAD database, including 36,254 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A468F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.22 ( 4316 hom., cov: 32)
Exomes 𝑓: 0.20 ( 31938 hom. )

Consequence

SH3TC2
NM_024577.4 missense

Scores

2
16

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 1.01
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0043907464).
BP6
Variant 5-149028330-C-A is Benign according to our data. Variant chr5-149028330-C-A is described in ClinVar as [Benign]. Clinvar id is 130297.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-149028330-C-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.305 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SH3TC2NM_024577.4 linkuse as main transcriptc.1402G>T p.Ala468Ser missense_variant 11/17 ENST00000515425.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SH3TC2ENST00000515425.6 linkuse as main transcriptc.1402G>T p.Ala468Ser missense_variant 11/171 NM_024577.4 P2Q8TF17-1

Frequencies

GnomAD3 genomes
AF:
0.225
AC:
34207
AN:
152012
Hom.:
4313
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.309
Gnomad AMI
AF:
0.229
Gnomad AMR
AF:
0.159
Gnomad ASJ
AF:
0.248
Gnomad EAS
AF:
0.0266
Gnomad SAS
AF:
0.238
Gnomad FIN
AF:
0.184
Gnomad MID
AF:
0.236
Gnomad NFE
AF:
0.208
Gnomad OTH
AF:
0.228
GnomAD3 exomes
AF:
0.194
AC:
48653
AN:
251050
Hom.:
5439
AF XY:
0.200
AC XY:
27093
AN XY:
135756
show subpopulations
Gnomad AFR exome
AF:
0.308
Gnomad AMR exome
AF:
0.114
Gnomad ASJ exome
AF:
0.247
Gnomad EAS exome
AF:
0.0245
Gnomad SAS exome
AF:
0.250
Gnomad FIN exome
AF:
0.184
Gnomad NFE exome
AF:
0.210
Gnomad OTH exome
AF:
0.206
GnomAD4 exome
AF:
0.204
AC:
298174
AN:
1461696
Hom.:
31938
Cov.:
80
AF XY:
0.206
AC XY:
149861
AN XY:
727142
show subpopulations
Gnomad4 AFR exome
AF:
0.312
Gnomad4 AMR exome
AF:
0.120
Gnomad4 ASJ exome
AF:
0.243
Gnomad4 EAS exome
AF:
0.0374
Gnomad4 SAS exome
AF:
0.249
Gnomad4 FIN exome
AF:
0.179
Gnomad4 NFE exome
AF:
0.206
Gnomad4 OTH exome
AF:
0.204
GnomAD4 genome
AF:
0.225
AC:
34222
AN:
152130
Hom.:
4316
Cov.:
32
AF XY:
0.224
AC XY:
16642
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.309
Gnomad4 AMR
AF:
0.159
Gnomad4 ASJ
AF:
0.248
Gnomad4 EAS
AF:
0.0265
Gnomad4 SAS
AF:
0.237
Gnomad4 FIN
AF:
0.184
Gnomad4 NFE
AF:
0.208
Gnomad4 OTH
AF:
0.232
Alfa
AF:
0.203
Hom.:
7406
Bravo
AF:
0.222
TwinsUK
AF:
0.216
AC:
800
ALSPAC
AF:
0.209
AC:
807
ESP6500AA
AF:
0.306
AC:
1347
ESP6500EA
AF:
0.204
AC:
1752
ExAC
AF:
0.201
AC:
24405
EpiCase
AF:
0.218
EpiControl
AF:
0.222

ClinVar

Significance: Benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Dec 05, 2014- -
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Charcot-Marie-Tooth disease type 4C Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Susceptibility to mononeuropathy of the median nerve, mild Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Charcot-Marie-Tooth disease Benign:1
Benign, criteria provided, single submitterclinical testingMolecular Genetics Laboratory, London Health Sciences Centre-- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Charcot-Marie-Tooth disease type 4 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
9.0
DANN
Benign
0.85
DEOGEN2
Benign
0.051
T;.
Eigen
Benign
-0.75
Eigen_PC
Benign
-0.79
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.47
T;T
MetaRNN
Benign
0.0044
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.4
M;.
MutationTaster
Benign
1.0
P;P;P;P
PrimateAI
Benign
0.23
T
PROVEAN
Benign
0.56
N;N
REVEL
Benign
0.17
Sift
Benign
0.69
T;T
Sift4G
Benign
0.34
T;T
Polyphen
0.88
P;.
Vest4
0.11
MPC
0.045
ClinPred
0.0098
T
GERP RS
0.80
Varity_R
0.034
gMVP
0.21

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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.

Other links and lift over

dbSNP: rs6875902; hg19: chr5-148407893; API