chr11-121190796-C-T

Position:

chr11-121190796-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_005422.4(TECTA):c.6458C>T(p.Thr2153Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00129 in 1,611,030 control chromosomes in the GnomAD database, including 23 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T2153T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00074 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 23 hom. )

Consequence

TECTA
NM_005422.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -0.0500

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 -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0035436153).

BP6

Variant 11-121190796-C-T is Benign according to our data. Variant chr11-121190796-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 303047.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=4}.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000736 (112/152272) while in subpopulation SAS AF= 0.0197 (95/4828). AF 95% confidence interval is 0.0165. There are 0 homozygotes in gnomad4. There are 77 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 23 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TECTA	NM_005422.4 linkuse as main transcript	c.6458C>T	p.Thr2153Met	missense_variant	24/24	ENST00000392793.6
TBCEL-TECTA	NM_001378761.1 linkuse as main transcript	c.7400C>T	p.Thr2467Met	missense_variant	30/30

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TECTA	ENST00000392793.6 linkuse as main transcript	c.6458C>T	p.Thr2153Met	missense_variant	24/24	5	NM_005422.4	P4

Frequencies

GnomAD3 genomes

AF:

0.000730

AC:

111

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000769

Gnomad SAS

AF:

0.0195

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00261

AC:

653

AN:

250550

Hom.:

AF XY:

0.00331

AC XY:

448

AN XY:

135450

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00114

Gnomad SAS exome

AF:

0.0203

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.00135

AC:

1974

AN:

1458758

Hom.:

Cov.:

AF XY:

0.00188

AC XY:

1361

AN XY:

725780

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00277

Gnomad4 SAS exome

AF:

0.0199

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000423

Gnomad4 OTH exome

AF:

0.00138

GnomAD4 genome

AF:

0.000736

AC:

112

AN:

152272

Hom.:

Cov.:

AF XY:

0.00103

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000771

Gnomad4 SAS

AF:

0.0197

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000245

Hom.:

Bravo

AF:

0.000227

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00298

AC:

362

Asia WGS

AF:

0.0110

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 18, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Sep 30, 2019	- -

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

May 21, 2016

p.Thr2153Met in exon 23 of TECTA: This variant is not expected to have clinical significance because it has been identified in 2.2% (340/15596) of South Asian c hromosomes, including 5 homozygotes, by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs146965680). -

Autosomal dominant nonsyndromic hearing loss 12

Benign:1

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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.65

BayesDel_noAF

Benign

-0.69

CADD

Benign

8.0

DANN

Benign

0.95

DEOGEN2

Benign

0.12

T;.;T

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.67

.;T;T

MetaRNN

Benign

0.0035

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;.;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.30

N;.;N

REVEL

Benign

0.094

Sift

Benign

0.30

T;.;T

Sift4G

Benign

0.076

T;.;T

Polyphen

0.0

B;.;B

Vest4

0.060

MVP

0.31

MPC

0.33

ClinPred

0.0074

GERP RS

-0.15

Varity_R

0.021

gMVP

0.40

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