dbSNP rs1350403244: TECTA:p.Ile2011Met (chr11-121187865-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_005422.4(TECTA):c.6033C>G(p.Ile2011Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. I2011I) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TECTA
NM_005422.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.431

Publications

0 publications found

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:

ENSG00000299284 (HGNC:):

ENSG00000299284 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 5 uncertain in NM_005422.4

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12136358).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TECTA	NM_005422.4 link	c.6033C>G	p.Ile2011Met	missense_variant	Exon 21 of 24	ENST00000392793.6	NP_005413.2	O75443
TBCEL-TECTA	NM_001378761.1 link	c.6975C>G	p.Ile2325Met	missense_variant	Exon 27 of 30		NP_001365690.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TECTA	ENST00000392793.6 link	c.6033C>G	p.Ile2011Met	missense_variant	Exon 21 of 24	5	NM_005422.4	ENSP00000376543.1		O75443

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

1.0

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.19

T;.;T

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.23

LIST_S2

Benign

0.83

.;T;T

M_CAP

Benign

0.032

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

-0.79

N;.;N

PhyloP100

-0.43

PrimateAI

Uncertain

0.68

PROVEAN

Benign

0.30

N;.;N

REVEL

Benign

0.19

Sift

Benign

0.39

T;.;T

Sift4G

Benign

0.92

T;.;T

Polyphen

0.16

B;.;B

Vest4

0.30

MutPred

0.48

Gain of disorder (P = 0.1058);.;Gain of disorder (P = 0.1058);

MVP

0.51

MPC

0.37

ClinPred

0.56

GERP RS

-0.058

Varity_R

0.17

gMVP

0.65

Mutation Taster

=74/26

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over