dbSNP rs535700451: OTOG:p.Ala2117Val (chr11-17612677-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001292063.2(OTOG):c.6350C>T(p.Ala2117Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000168 in 1,550,610 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

OTOG
NM_001292063.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.90

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OTOG	NM_001292063.2 link	c.6350C>T	p.Ala2117Val	missense_variant	Exon 38 of 56	ENST00000399397.6	NP_001278992.1	H9KVB3
OTOG	NM_001277269.2 link	c.6386C>T	p.Ala2129Val	missense_variant	Exon 37 of 55		NP_001264198.1	Q6ZRI0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OTOG	ENST00000399397.6 link	c.6350C>T	p.Ala2117Val	missense_variant	Exon 38 of 56	5	NM_001292063.2	ENSP00000382329.2	H9KVB3
OTOG	ENST00000399391.7 link	c.6386C>T	p.Ala2129Val	missense_variant	Exon 37 of 55	5		ENSP00000382323.2	Q6ZRI0-1
OTOG	ENST00000342528.2 link	n.3688C>T		non_coding_transcript_exon_variant	Exon 14 of 22	2

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152166

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:

0.00116

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

GnomAD3 exomes

AF:

0.0000670

AC:

AN:

149182

Hom.:

AF XY:

0.0000747

AC XY:

AN XY:

80310

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000927

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000143

AC:

AN:

1398326

Hom.:

Cov.:

AF XY:

0.0000174

AC XY:

AN XY:

689692

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000532

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152284

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00116

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000529

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Ala2129Val variant in OTOG has not been previously reported in individuals with hearing loss, but has been identified in 1/206 of Chinese chromosomes by t he 1000 Genomes Project (dbSNP rs535700451). Although this variant has been seen in the general population, its frequency is not high enough to rule out a patho genic role. Computational prediction tools and conservation analysis suggest tha t the p.Ala2129Val variant may impact the protein, though this information is no t predictive enough to determine pathogenicity. In summary, the clinical signifi cance of the p.Ala2129Val variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.40

T;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.90

D;D

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.50

T;T

MetaSVM

Benign

-0.29

MutationAssessor

Uncertain

2.8

M;.

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-3.5

D;.

REVEL

Uncertain

0.41

Sift

Uncertain

0.0040

D;.

Sift4G

Uncertain

0.0030

D;D

Vest4

0.57

MutPred

0.50

Gain of ubiquitination at K2132 (P = 0.0725);.;

MVP

0.39

ClinPred

0.81

GERP RS

5.4

Varity_R

0.48

gMVP

0.62

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

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