rs144012985

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_005422.4(TECTA):c.3492C>T(p.Thr1164=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000266 in 1,613,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

TECTA
NM_005422.4 synonymous

Scores

Clinical Significance

Likely benign reviewed by expert panel U:1B:7

Conservation

PhyloP100: -1.18

Variant links:

Genes affected

TECTA (HGNC:11720): (tectorin alpha) The tectorial membrane is an extracellular matrix of the inner ear that contacts the stereocilia bundles of specialized sensory hair cells. Sound induces movement of these hair cells relative to the tectorial membrane, deflects the stereocilia, and leads to fluctuations in hair-cell membrane potential, transducing sound into electrical signals. Alpha-tectorin is one of the major noncollagenous components of the tectorial membrane. Mutations in the TECTA gene have been shown to be responsible for autosomal dominant nonsyndromic hearing impairment and a recessive form of sensorineural pre-lingual non-syndromic deafness. [provided by RefSeq, Jul 2008]

TECTA links:

TBCEL-TECTA (HGNC:):

TBCEL-TECTA links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.48).

BP6

Variant 11-121137971-C-T is Benign according to our data. Variant chr11-121137971-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 178539.Status of the report is reviewed_by_expert_panel, 3 stars.

BP7

Synonymous conserved (PhyloP=-1.17 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00129 (197/152234) while in subpopulation AFR AF= 0.00448 (186/41528). AF 95% confidence interval is 0.00395. There are 0 homozygotes in gnomad4. There are 97 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TECTA	NM_005422.4 linkuse as main transcript	c.3492C>T	p.Thr1164=	synonymous_variant	11/24	ENST00000392793.6
TBCEL-TECTA	NM_001378761.1 linkuse as main transcript	c.4449C>T	p.Thr1483=	synonymous_variant	17/30

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
TECTA	ENST00000392793.6 linkuse as main transcript	c.3492C>T	p.Thr1164=	synonymous_variant	11/24	5	NM_005422.4	P4
TECTA	ENST00000264037.2 linkuse as main transcript	c.3492C>T	p.Thr1164=	synonymous_variant	10/23	1		P4
TECTA	ENST00000642222.1 linkuse as main transcript	c.3492C>T	p.Thr1164=	synonymous_variant	11/24			A1
TECTA	ENST00000645008.1 linkuse as main transcript	c.801C>T	p.Thr267=	synonymous_variant	2/15

Frequencies

GnomAD3 genomes

AF:

0.00128

AC:

194

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00442

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000882

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000393

AC:

AN:

249512

Hom.:

AF XY:

0.000311

AC XY:

AN XY:

134978

show subpopulations

Gnomad AFR exome

AF:

0.00476

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000982

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000159

AC:

232

AN:

1460800

Hom.:

Cov.:

AF XY:

0.000156

AC XY:

113

AN XY:

726458

show subpopulations

Gnomad4 AFR exome

AF:

0.00383

Gnomad4 AMR exome

AF:

0.000313

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000621

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.00129

AC:

197

AN:

152234

Hom.:

Cov.:

AF XY:

0.00130

AC XY:

AN XY:

74426

show subpopulations

Gnomad4 AFR

AF:

0.00448

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000932

Hom.:

Bravo

AF:

0.00144

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:7

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	Invitae	Dec 02, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Apr 13, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 16, 2020	- -

Autosomal recessive nonsyndromic hearing loss 21

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jun 16, 2016

p.Thr1164Thr in Exon 10 of TECTA: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located wit hin the splice consensus sequence, and has been identified in 0.5% (52/10124) of African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broa dinstitute.org; dbSNP rs144012985). -

Nonsyndromic genetic hearing loss

Benign:1

Likely benign, reviewed by expert panel

curation

ClinGen Hearing Loss Variant Curation Expert Panel

Feb 13, 2019

The filtering allele frequency of the c.3492C>T (p.Thr1164=) variant in the TECTA gene is 0.423% for African chromosomes by gnomAD (123/23960) with 95% CI), which is a high enough frequency to be classified as likely benign based on the thresholds defined by the ClinGen Hearing Loss Expert Panel for autosomal recessive hearing loss variants (BS1). The silent p.Thr1164= variant in TECTA is not predicted by MaxEntScan to impact splicing (BP7, BP4). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Hearing Loss Expert Panel: BS1, BP7, BP4. -

Autosomal dominant nonsyndromic hearing loss 12

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

TECTA-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 20, 2019

This variant is classified as likely 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

-0.48

Cadd

Benign

0.28

Dann

Benign

0.79

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over