chr11-121105850-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005422.4(TECTA):​c.84G>A​(p.Met28Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,864 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 Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TECTA
NM_005422.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.96
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3336401).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TECTANM_005422.4 linkuse as main transcriptc.84G>A p.Met28Ile missense_variant 3/24 ENST00000392793.6
TBCEL-TECTANM_001378761.1 linkuse as main transcriptc.1041G>A p.Met347Ile missense_variant 9/30

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TECTAENST00000392793.6 linkuse as main transcriptc.84G>A p.Met28Ile missense_variant 3/245 NM_005422.4 P4
TECTAENST00000264037.2 linkuse as main transcriptc.84G>A p.Met28Ile missense_variant 2/231 P4
TECTAENST00000642222.1 linkuse as main transcriptc.84G>A p.Met28Ile missense_variant 3/24 A1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461864
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 30, 2023The c.84G>A (p.M28I) alteration is located in exon 2 (coding exon 2) of the TECTA gene. This alteration results from a G to A substitution at nucleotide position 84, causing the methionine (M) at amino acid position 28 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingClinical Genetics Laboratory, Skane University Hospital LundMay 25, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.49
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.42
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.24
.;T;.;T
Eigen
Benign
0.068
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
T;.;T;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.33
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.90
.;L;.;L
MutationTaster
Benign
0.89
D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.51
.;N;.;N
REVEL
Benign
0.13
Sift
Benign
0.054
.;T;.;T
Sift4G
Uncertain
0.025
.;D;.;D
Polyphen
0.015
.;B;.;B
Vest4
0.34, 0.36
MutPred
0.59
.;Gain of catalytic residue at P30 (P = 0.0305);Gain of catalytic residue at P30 (P = 0.0305);Gain of catalytic residue at P30 (P = 0.0305);
MVP
0.65
MPC
0.36
ClinPred
0.84
D
GERP RS
5.8
Varity_R
0.37
gMVP
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-120976559; API