NM_001128228.3:c.1929G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001128228.3(TPRN):c.1929G>A(p.Val643Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00077 in 1,605,826 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0042 ( 6 hom., cov: 33)

Exomes 𝑓: 0.00041 ( 8 hom. )

Consequence

TPRN
NM_001128228.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.697

Publications

0 publications found

Variant links:

Genes affected

TPRN (HGNC:26894): (taperin) This locus encodes a sensory epithelial protein. It was defined by linkage analysis in three Pakistani families to lie between D9S1818 (centromeric) and D9SH6 (telomeric). Mutations at this locus have been associated with autosomal recessive deafness. [provided by RefSeq, Oct 2010]

TPRN Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 79
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
nonsyndromic genetic hearing loss
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

TPRN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 9-137192488-C-T is Benign according to our data. Variant chr9-137192488-C-T is described in ClinVar as Benign. ClinVar VariationId is 165577.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.697 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00425 (647/152326) while in subpopulation AFR AF = 0.0139 (579/41578). AF 95% confidence interval is 0.013. There are 6 homozygotes in GnomAd4. There are 300 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TPRN	NM_001128228.3 link	c.1929G>A	p.Val643Val	synonymous_variant	Exon 2 of 4	ENST00000409012.6	NP_001121700.2	Q4KMQ1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TPRN	ENST00000409012.6 link	c.1929G>A	p.Val643Val	synonymous_variant	Exon 2 of 4	1	NM_001128228.3	ENSP00000387100.4	Q4KMQ1-1
TPRN	ENST00000477345.1 link	n.2650G>A		non_coding_transcript_exon_variant	Exon 1 of 3	1
TPRN	ENST00000333046.8 link	c.1323G>A	p.Val441Val	synonymous_variant	Exon 2 of 3	2		ENSP00000327617.4	H3BLU1
TPRN	ENST00000541945.1 link	n.*164G>A		downstream_gene_variant		4

Frequencies

GnomAD3 genomes

AF:

0.00424

AC:

645

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0139

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00405

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000976

AC:

228

AN:

233654

AF XY:

0.000732

show subpopulations

Gnomad AFR exome

AF:

0.0136

Gnomad AMR exome

AF:

0.000757

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000116

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000689

GnomAD4 exome

AF:

0.000405

AC:

589

AN:

1453500

Hom.:

Cov.:

AF XY:

0.000328

AC XY:

237

AN XY:

722602

show subpopulations

African (AFR)

AF:

0.0149

AC:

494

AN:

33250

American (AMR)

AF:

0.00101

AC:

AN:

43592

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25968

East Asian (EAS)

AF:

0.0000255

AC:

AN:

39222

South Asian (SAS)

AF:

0.00

AC:

AN:

85322

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51826

Middle Eastern (MID)

AF:

0.000349

AC:

AN:

5730

European-Non Finnish (NFE)

AF:

0.00000361

AC:

AN:

1108532

Other (OTH)

AF:

0.000733

AC:

AN:

60058

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

118

157

196

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00425

AC:

647

AN:

152326

Hom.:

Cov.:

AF XY:

0.00403

AC XY:

300

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.0139

AC:

579

AN:

41578

American (AMR)

AF:

0.00405

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68018

Other (OTH)

AF:

0.00237

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

123

154

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00168

Hom.:

Bravo

AF:

0.00493

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 18, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:1

May 07, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Val643Val in Exon 02 of TPRN: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, and has been identified in 1.1% (42/3736) of Afr ican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs115446132). -

TPRN-related disorder

Benign:1

Jul 30, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

4.2

(source)

DANN

Benign

0.59

PhyloP100

0.70

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over