Genetic Variant NM_001292063.2:c.2772C>A (chr11-17586486-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001292063.2(OTOG):c.2772C>A(p.His924Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000782 in 1,278,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. H924H) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.8e-7 ( 0 hom. )

Consequence

OTOG
NM_001292063.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.89

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 18B
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine, Ambry Genetics
nonsyndromic genetic hearing loss
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

OTOG links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.26078543).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001292063.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OTOG	NM_001292063.2	MANE Select	c.2772C>A	p.His924Gln	missense	Exon 24 of 56	NP_001278992.1
	OTOG	NM_001277269.2		c.2808C>A	p.His936Gln	missense	Exon 23 of 55	NP_001264198.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
OTOG	ENST00000399397.6	TSL:5 MANE Select	c.2772C>A	p.His924Gln	missense	Exon 24 of 56	ENSP00000382329.2
OTOG	ENST00000399391.7	TSL:5	c.2808C>A	p.His936Gln	missense	Exon 23 of 55	ENSP00000382323.2
OTOG	ENST00000342528.2	TSL:2	n.276C>A		non_coding_transcript_exon	Exon 2 of 22

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.82e-7

AC:

AN:

1278116

Hom.:

Cov.:

AF XY:

0.00000160

AC XY:

AN XY:

625820

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

26496

American (AMR)

AF:

0.00

AC:

AN:

20954

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20612

East Asian (EAS)

AF:

0.00

AC:

AN:

29046

South Asian (SAS)

AF:

0.0000171

AC:

AN:

58384

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1019102

Other (OTH)

AF:

0.00

AC:

AN:

52618

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Benign

0.37

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.44

Eigen

Benign

-0.88

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.081

LIST_S2

Benign

0.79

M_CAP

Benign

0.037

MetaRNN

Benign

0.26

MetaSVM

Benign

-0.90

MutationAssessor

Benign

2.0

PhyloP100

-2.9

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-6.5

REVEL

Benign

0.17

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0070

Vest4

0.40

MutPred

0.56

Gain of disorder (P = 0.0323)

MVP

0.048

ClinPred

0.98

GERP RS

-7.4

Varity_R

0.58

gMVP

0.35

Mutation Taster

=72/28

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over