rs111033537

chr21-42376552-C-Tchr21-42376552-C-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PM5 PP3_Strong

The NM_001256317.3(TMPRSS3):c.1180G>A(p.Asp394Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D394H) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: TMPRSS3 NM_001256317.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.04

Genes affected

TMPRSS3 (HGNC:11877): (transmembrane serine protease 3) This gene encodes a protein that belongs to the serine protease family. The encoded protein contains a serine protease domain, a transmembrane domain, an LDL receptor-like domain, and a scavenger receptor cysteine-rich domain. Serine proteases are known to be involved in a variety of biological processes, whose malfunction often leads to human diseases and disorders. This gene was identified by its association with both congenital and childhood onset autosomal recessive deafness. This gene is expressed in fetal cochlea and many other tissues, and is thought to be involved in the development and maintenance of the inner ear or the contents of the perilymph and endolymph. This gene was also identified as a tumor-associated gene that is overexpressed in ovarian tumors. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2012]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_001256317.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr21-42376552-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 46099.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1}.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.982

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMPRSS3	NM_001256317.3	c.1180G>A	p.Asp394Asn	missense_variant	11/13	ENST00000644384.2
TMPRSS3	NM_024022.4	c.1183G>A	p.Asp395Asn	missense_variant	11/13
TMPRSS3	NM_032404.3	c.802G>A	p.Asp268Asn	missense_variant	8/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMPRSS3	ENST00000644384.2	c.1180G>A	p.Asp394Asn	missense_variant	11/13		NM_001256317.3	A1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461058 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726836

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jun 14, 2022

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 395 of the TMPRSS3 protein (p.Asp395Asn). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with deafness (Invitae). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt TMPRSS3 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Uncertain	0.062	T
BayesDel_noAF	Benign	-0.15
Cadd	Pathogenic	27
Dann	Pathogenic	1.0
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Benign	0.26	N
LIST_S2	Uncertain	0.96	D;.;D;D
M_CAP	Pathogenic	0.72	D
MetaRNN	Pathogenic	0.98	D;D;D;D
MetaSVM	Uncertain	0.59	D
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.72	T
Polyphen		1.0	D;D;D;D
Vest4		0.88, 0.88
MutPred		0.95		.;Loss of disorder (P = 0.1315);Loss of disorder (P = 0.1315);.;
MVP		0.88
MPC		0.53
ClinPred		1.0	D
GERP RS		4.9
Varity_R		0.59
gMVP		0.95

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

LitVar

Other links and lift over

dbSNP: rs111033537; hg19: chr21-43796661;