5-149010271-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PM5PP3

The ENST00000515425.6(SH3TC2):​c.3326G>A​(p.Arg1109Gln) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000342 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1109P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SH3TC2
ENST00000515425.6 missense, splice_region

Scores

2
14
3
Splicing: ADA: 0.9769
1
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.95
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 Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr5-149010271-C-G is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.794

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SH3TC2NM_024577.4 linkuse as main transcriptc.3326G>A p.Arg1109Gln missense_variant, splice_region_variant 14/17 ENST00000515425.6 NP_078853.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SH3TC2ENST00000515425.6 linkuse as main transcriptc.3326G>A p.Arg1109Gln missense_variant, splice_region_variant 14/171 NM_024577.4 ENSP00000423660 P2Q8TF17-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251422
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135878
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461862
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.28
T;.
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Uncertain
0.089
D
MetaRNN
Pathogenic
0.79
D;D
MetaSVM
Uncertain
0.065
D
MutationAssessor
Uncertain
2.8
M;.
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-3.4
D;D
REVEL
Uncertain
0.52
Sift
Uncertain
0.0060
D;D
Sift4G
Uncertain
0.014
D;D
Polyphen
1.0
D;.
Vest4
0.65
MutPred
0.50
Loss of MoRF binding (P = 0.0217);.;
MVP
0.91
MPC
0.26
ClinPred
0.95
D
GERP RS
5.8
Varity_R
0.46
gMVP
0.40

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.98
dbscSNV1_RF
Benign
0.63
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.

Other links and lift over

dbSNP: rs80338935; hg19: chr5-148389834; COSMIC: COSV60461239; COSMIC: COSV60461239; API