rs143032801

chr5-149027870-C-Achr5-149027870-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_024577.4(SH3TC2):c.1862G>T(p.Arg621Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 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. R621H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: SH3TC2 NM_024577.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.03

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.882

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SH3TC2	NM_024577.4	c.1862G>T	p.Arg621Leu	missense_variant	11/17	ENST00000515425.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SH3TC2	ENST00000515425.6	c.1862G>T	p.Arg621Leu	missense_variant	11/17	1	NM_024577.4	P2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.42
BayesDel_addAF	Uncertain	0.091	D
BayesDel_noAF	Benign	-0.11
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.63	D;.
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.88	D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.88	D;D
MetaSVM	Uncertain	0.024	D
MutationAssessor	Uncertain	2.7	M;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Benign	0.48	T
PROVEAN	Pathogenic	-5.8	D;D
REVEL	Uncertain	0.48
Sift	Uncertain	0.0030	D;D
Sift4G	Uncertain	0.0040	D;D
Polyphen		0.99	D;.
Vest4		0.69
MutPred		0.65		Loss of solvent accessibility (P = 0.0299);.;
MVP		0.92
MPC		0.24
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.60
gMVP		0.70

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-148407433;