rs141674508

Positions:

• chr11-121146085-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_005422.4(TECTA):​c.4074G>A​(p.Thr1358Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00111 in 1,611,660 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0058 (10 hom., cov: 33)
  • Exomes 𝑓: 0.00061 (11 hom.)
• Consequence: TECTA NM_005422.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: -2.19

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]

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]

TECTA (HGNC:):

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).
• BP6: Variant 11-121146085-G-A is Benign according to our data. Variant chr11-121146085-G-A is described in ClinVar as [Benign]. Clinvar id is 45328.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-121146085-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-2.19 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00585 (891/152374) while in subpopulation AFR AF= 0.0203 (843/41578). AF 95% confidence interval is 0.0191. There are 10 homozygotes in gnomad4. There are 418 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 10 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TECTA	NM_005422.4	c.4074G>A	p.Thr1358Thr	synonymous_variant	12/24	ENST00000392793.6	NP_005413.2
TBCEL-TECTA	NM_001378761.1	c.5031G>A	p.Thr1677Thr	synonymous_variant	18/30		NP_001365690.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TECTA	ENST00000392793.6	c.4074G>A	p.Thr1358Thr	synonymous_variant	12/24	5	NM_005422.4	ENSP00000376543.1

Frequencies

GnomAD3 genomes AF: 0.00582 AC: 886 AN: 152256 Hom.: 10 Cov.: 33

Gnomad AFR AF: 0.0202

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00255

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: 0.0000441

Gnomad OTH AF: 0.00287

GnomAD3 exomes AF: 0.00132 AC: 322 AN: 244252 Hom.: 5 AF XY: 0.00102 AC XY: 136 AN XY: 133084

Gnomad AFR exome AF: 0.0191

Gnomad AMR exome AF: 0.000551

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000131

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000363

Gnomad OTH exome AF: 0.000496

GnomAD4 exome AF: 0.000613 AC: 895 AN: 1459286 Hom.: 11 Cov.: 31 AF XY: 0.000518 AC XY: 376 AN XY: 726022

Gnomad4 AFR exome AF: 0.0218

Gnomad4 AMR exome AF: 0.000671

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000756

Gnomad4 SAS exome AF: 0.000162

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000306

Gnomad4 OTH exome AF: 0.00131

GnomAD4 genome AF: 0.00585 AC: 891 AN: 152374 Hom.: 10 Cov.: 33 AF XY: 0.00561 AC XY: 418 AN XY: 74516

Gnomad4 AFR AF: 0.0203

Gnomad4 AMR AF: 0.00255

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00284

Alfa AF: 0.00214 Hom.: 1

Bravo AF: 0.00679

Asia WGS AF: 0.000577 AC: 2 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 15, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 14, 2019	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Apr 30, 2012

Thr1358Thr in Exon 11 of TECTA: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 1.7% (64/3728) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs141674508). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.37
DANN	Benign	0.58

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

Other links and lift over

dbSNP: rs141674508; hg19: chr11-121016794;