chr21-42376607-G-A

Variant names:

• chr21-42376607-G-A
• rs111033292
• NM_001256317.3:c.1125C>T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_001256317.3(TMPRSS3):​c.1125C>T​(p.Tyr375Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00294 in 1,614,020 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0022 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0030 (6 hom.)
• Consequence: TMPRSS3 NM_001256317.3 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:6
• Conservation: PhyloP100: -0.387

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 Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.58).
• BP6: Variant 21-42376607-G-A is Benign according to our data. Variant chr21-42376607-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 46098.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Benign=1, Likely_benign=3}. Variant chr21-42376607-G-A is described in Lovd as [Likely_benign]. Variant chr21-42376607-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-0.387 with no splicing effect.
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0022 (335/152292) while in subpopulation NFE AF= 0.00344 (234/68022). AF 95% confidence interval is 0.00308. There are 0 homozygotes in gnomad4. There are 147 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMPRSS3	NM_001256317.3	c.1125C>T	p.Tyr375Tyr	synonymous_variant	Exon 11 of 13	ENST00000644384.2	NP_001243246.1
TMPRSS3	NM_024022.4	c.1128C>T	p.Tyr376Tyr	synonymous_variant	Exon 11 of 13		NP_076927.1
TMPRSS3	NM_032404.3	c.747C>T	p.Tyr249Tyr	synonymous_variant	Exon 8 of 10		NP_115780.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMPRSS3	ENST00000644384.2	c.1125C>T	p.Tyr375Tyr	synonymous_variant	Exon 11 of 13		NM_001256317.3	ENSP00000494414.1

Frequencies

GnomAD3 genomes AF: 0.00219 AC: 333 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00159

Gnomad AMI AF: 0.00768

Gnomad AMR AF: 0.00124

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000659

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00344

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.00162 AC: 408 AN: 251386 Hom.: 0 AF XY: 0.00155 AC XY: 211 AN XY: 135880

Gnomad AFR exome AF: 0.00123

Gnomad AMR exome AF: 0.000260

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00111

Gnomad NFE exome AF: 0.00303

Gnomad OTH exome AF: 0.00147

GnomAD4 exome AF: 0.00301 AC: 4403 AN: 1461728 Hom.: 6 Cov.: 32 AF XY: 0.00287 AC XY: 2089 AN XY: 727162

Gnomad4 AFR exome AF: 0.00164

Gnomad4 AMR exome AF: 0.000268

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.000101

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00141

Gnomad4 NFE exome AF: 0.00373

Gnomad4 OTH exome AF: 0.00176

GnomAD4 genome AF: 0.00220 AC: 335 AN: 152292 Hom.: 0 Cov.: 32 AF XY: 0.00197 AC XY: 147 AN XY: 74456

Gnomad4 AFR AF: 0.00164

Gnomad4 AMR AF: 0.00124

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.000659

Gnomad4 NFE AF: 0.00344

Gnomad4 OTH AF: 0.00

Alfa AF: 0.00282 Hom.: 0

Bravo AF: 0.00216

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:6

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:4

May 25, 2017

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

TMPRSS3: BP4, BP7 -

Apr 14, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 11907649, 11424922) -

not specified Benign:2

Aug 29, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Tyr376Tyr in exon 11 of TMPRSS3: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue, is not located with in the splice consensus sequence, and has been identified in 0.6% (27/4427) of A frican American chromosomes from a broad population by the NHLBI Exome Sequencin g Project (http://evs.gs.washington.edu/EVS; dbSNP rs111033292). -

-

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 8 Uncertain:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.58
CADD	Benign	0.80
DANN	Benign	0.69

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: rs111033292; hg19: chr21-43796716;