Variant 11-17547520-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001277269.2(OTOG):c.148A>G(p.Lys50Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000537 in 1,303,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000043 ( 0 hom. )

Consequence

OTOG
NM_001277269.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.165

Variant links:

Genes affected

OTOG (HGNC:8516): (otogelin) The protein encoded by this gene is a component of the acellular membranes of the inner ear. Disruption of the orthologous mouse gene shows that it plays a role in auditory and vestibular functions. It is involved in fibrillar network organization, the anchoring of otoconial membranes and cupulae to the neuroepithelia, and likely in sound stimulation resistance. Mutations in this gene cause autosomal recessive nonsyndromic deafness, type 18B. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2014]

OTOG links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.048005104).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OTOG	NM_001292063.2 linkuse as main transcript	c.94+54A>G		intron_variant		ENST00000399397.6	NP_001278992.1	H9KVB3
OTOG	NM_001277269.2 linkuse as main transcript	c.148A>G	p.Lys50Glu	missense_variant	1/55		NP_001264198.1	Q6ZRI0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OTOG	ENST00000399397.6 linkuse as main transcript	c.94+54A>G		intron_variant		5	NM_001292063.2	ENSP00000382329.2		H9KVB3
OTOG	ENST00000399391.7 linkuse as main transcript	c.148A>G	p.Lys50Glu	missense_variant	1/55	5		ENSP00000382323.2		Q6ZRI0-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151942

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:

0.000388

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:

0.00000434

AC:

AN:

1151606

Hom.:

Cov.:

AF XY:

0.00000362

AC XY:

AN XY:

551988

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000110

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000104

Gnomad4 OTH exome

AF:

0.0000213

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151942

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74202

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000388

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 03, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with OTOG-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.05%). This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 50 of the OTOG protein (p.Lys50Glu). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.69

CADD

Benign

4.7

DANN

Benign

0.12

DEOGEN2

Benign

0.021

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.35

M_CAP

Pathogenic

0.35

MetaRNN

Benign

0.048

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.0

PrimateAI

Benign

0.47

PROVEAN

Benign

0.21

REVEL

Benign

0.027

Sift

Benign

0.86

Sift4G

Benign

1.0

Vest4

0.11

MutPred

0.22

Loss of glycosylation at K50 (P = 0.0175);

MVP

0.030

ClinPred

0.022

GERP RS

-1.2

Varity_R

0.064

gMVP

0.17

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

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