NM_005422.4:c.3511G>A

Variant names:

Variant summary

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

The NM_005422.4(TECTA):c.3511G>A(p.Val1171Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00024 in 1,613,716 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00016 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 2 hom. )

Consequence

TECTA
NM_005422.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 2.95

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:54857): (TBCEL-TECTA readthrough) Predicted to enable alpha-tubulin binding activity. Predicted to be involved in microtubule cytoskeleton organization; post-chaperonin tubulin folding pathway; and tubulin complex assembly. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

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=0.012463182).

BP6

Variant 11-121137990-G-A is Benign according to our data. Variant chr11-121137990-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 303015.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000158 (24/152346) while in subpopulation EAS AF= 0.00463 (24/5186). AF 95% confidence interval is 0.00319. There are 1 homozygotes in gnomad4. There are 9 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TECTA	NM_005422.4 link	c.3511G>A	p.Val1171Met	missense_variant	Exon 11 of 24	ENST00000392793.6	NP_005413.2	O75443
TBCEL-TECTA	NM_001378761.1 link	c.4468G>A	p.Val1490Met	missense_variant	Exon 17 of 30		NP_001365690.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TECTA	ENST00000392793.6 link	c.3511G>A	p.Val1171Met	missense_variant	Exon 11 of 24	5	NM_005422.4	ENSP00000376543.1	O75443
TECTA	ENST00000264037.2 link	c.3511G>A	p.Val1171Met	missense_variant	Exon 10 of 23	1		ENSP00000264037.2	O75443
TECTA	ENST00000642222.1 link	c.3511G>A	p.Val1171Met	missense_variant	Exon 11 of 24			ENSP00000493855.1	A0A2R8YDL0
TECTA	ENST00000645008.1 link	c.817G>A	p.Val273Met	missense_variant	Exon 2 of 15			ENSP00000496274.1	A0A2R8YGQ5

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152228

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:

0.00462

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000234

AC:

AN:

247956

Hom.:

AF XY:

0.000171

AC XY:

AN XY:

134302

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00299

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000271

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000248

AC:

363

AN:

1461370

Hom.:

Cov.:

AF XY:

0.000237

AC XY:

172

AN XY:

726868

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00875

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000158

AC:

AN:

152346

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00463

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000180

Hom.:

Bravo

AF:

0.000151

ExAC

AF:

0.000272

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Apr 12, 2021

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Identified in patients with hearing loss in published literature, although specific genotype and phenotype information were not provided for the affected individuals (Miyagawa et al., 2013; Chen et al., 2016); Reported as a non-pathogenic variant without additional details (Yamamoto et al., 2017; Azaiez et al., 2018); In silico analysis supports that this missense variant does not alter protein structure/function; Located in the von Willebrand factor type D3 region of the zonadhesin domain (Hildebrand et al., 2011); This variant is associated with the following publications: (PMID: 30245029, 28946916, 27610647, 23967202) -

May 17, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Autosomal recessive nonsyndromic hearing loss 21

Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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

Jun 07, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

p.Val1171Met in exon 10 of TECTA: This variant is not expected to have clinical significance because it has been identified in 0.4% (33/8586) of East Asian chro mosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.or g; dbSNP rs186780639). -

Autosomal dominant nonsyndromic hearing loss 12

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.;T

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.80

.;T;T

M_CAP

Benign

0.027

MetaRNN

Benign

0.012

T;T;T

MetaSVM

Benign

-0.69

MutationAssessor

Uncertain

2.3

M;.;M

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.080

N;.;N

REVEL

Benign

0.20

Sift

Benign

0.17

T;.;T

Sift4G

Benign

0.093

T;.;T

Polyphen

0.97

D;.;D

Vest4

0.30

MVP

0.82

MPC

0.89

ClinPred

0.16

GERP RS

4.6

Varity_R

0.079

gMVP

0.65

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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