Variant chr16-21681794-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_144672.4(OTOA):c.236G>T(p.Arg79Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

OTOA
NM_144672.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.686

Variant links:

Genes affected

OTOA (HGNC:16378): (otoancorin) The protein encoded by this gene is specifically expressed in the inner ear, and is located at the interface between the apical surface of the inner ear sensory epithelia and their overlying acellular gels. It is prposed that this protein is involved in the attachment of the inner ear acellular gels to the apical surface of the underlying nonsensory cells. Mutations in this gene are associated with autosomal recessive deafness type 22 (DFNB22). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

OTOA links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13200507).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OTOA	NM_144672.4 link	c.236G>T	p.Arg79Leu	missense_variant	Exon 6 of 29	ENST00000646100.2	NP_653273.3	Q05BM7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OTOA	ENST00000646100.2 link	c.236G>T	p.Arg79Leu	missense_variant	Exon 6 of 29		NM_144672.4	ENSP00000496564.2	Q7RTW8-5
OTOA	ENST00000388958.8 link	c.236G>T	p.Arg79Leu	missense_variant	Exon 5 of 28	1		ENSP00000373610.3	Q7RTW8-5
OTOA	ENST00000286149.8 link	c.236G>T	p.Arg79Leu	missense_variant	Exon 5 of 28	5		ENSP00000286149.4	Q7RTW8-1
OTOA	ENST00000647277.1 link	n.236G>T		non_coding_transcript_exon_variant	Exon 6 of 29			ENSP00000495594.1	A0A2R8YG28

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152014

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461836

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152014

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74250

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.034

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.019

.;T;.

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.75

.;T;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.13

T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.0

M;M;M

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.4

.;N;N

REVEL

Benign

0.26

Sift

Benign

0.030

.;D;D

Sift4G

Uncertain

0.039

.;D;D

Vest4

0.60, 0.60

MutPred

0.39

Loss of catalytic residue at R79 (P = 0.0258);Loss of catalytic residue at R79 (P = 0.0258);Loss of catalytic residue at R79 (P = 0.0258);

MVP

0.71

MPC

0.40

ClinPred

0.47

GERP RS

-0.66

Varity_R

0.074

gMVP

0.22

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over