chr12-80211953-G-A

Variant names:

Variant summary

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

The NM_001378609.3(OTOGL):c.124G>A(p.Gly42Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000079 in 1,569,584 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

OTOGL
NM_001378609.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 1.56

Variant links:

Genes affected

OTOGL (HGNC:26901): (otogelin like) The protein encoded by this gene belongs to the otogelin family. This gene is expressed in the inner ear of vertebrates with the highest level of expression seen at the embryonic stage and lowest in adult. Knockdown studies in zebrafish suggest that this gene is essential for normal inner ear function. Mutations in this gene are associated with autosomal recessive deafness. [provided by RefSeq, Dec 2012]

OTOGL 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
OTOGL	NM_001378609.3 link	c.124G>A	p.Gly42Arg	missense_variant	Exon 4 of 59	ENST00000547103.7	NP_001365538.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OTOGL	ENST00000547103.7 link	c.124G>A	p.Gly42Arg	missense_variant	Exon 4 of 59	5	NM_001378609.3	ENSP00000447211.2	Q3ZCN5
OTOGL	ENST00000646859.1 link	c.124G>A	p.Gly42Arg	missense_variant	Exon 9 of 63			ENSP00000496036.1	A0A2R8YF04
OTOGL	ENST00000643417.1 link	n.784G>A		non_coding_transcript_exon_variant	Exon 7 of 23

Frequencies

GnomAD3 genomes

AF:

0.000454

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00159

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.0000147

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.0000790

AC:

AN:

189892

Hom.:

AF XY:

0.0000684

AC XY:

AN XY:

102302

show subpopulations

Gnomad AFR exome

AF:

0.00109

Gnomad AMR exome

AF:

0.0000339

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000117

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000381

AC:

AN:

1417324

Hom.:

Cov.:

AF XY:

0.0000385

AC XY:

AN XY:

702146

show subpopulations

Gnomad4 AFR exome

AF:

0.00136

Gnomad4 AMR exome

AF:

0.0000497

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:

9.12e-7

Gnomad4 OTH exome

AF:

0.000101

GnomAD4 genome

AF:

0.000460

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.000483

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.00161

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000475

Alfa

AF:

0.0000474

Hom.:

Bravo

AF:

0.000514

ESP6500AA

AF:

0.000546

AC:

ESP6500EA

AF:

0.000122

AC:

ExAC

AF:

0.0000676

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Jul 19, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 33 of the OTOGL protein (p.Gly33Arg). This variant is present in population databases (rs149117887, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with OTOGL-related conditions. ClinVar contains an entry for this variant (Variation ID: 1211910). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. -

Mar 16, 2025

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports a deleterious effect on splicing; In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Inborn genetic diseases

Uncertain:1

Sep 14, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.97G>A (p.G33R) alteration is located in exon 3 (coding exon 3) of the OTOGL gene. This alteration results from a G to A substitution at nucleotide position 97, causing the glycine (G) at amino acid position 33 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Benign

0.91

Eigen

Benign

-0.095

Eigen_PC

Benign

0.033

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.49

T;.;T

M_CAP

Benign

0.0096

MetaRNN

Benign

0.0085

T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.72

.;.;N

REVEL

Benign

0.014

Sift

Benign

0.73

.;.;T

Sift4G

Benign

0.20

.;.;T

Vest4

0.29

MutPred

0.17

.;.;Gain of MoRF binding (P = 0.05);

MVP

0.16

MPC

0.024

ClinPred

0.030

GERP RS

3.7

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.23

Position offset: 2

DS_AL_spliceai

0.22

Position offset: -4

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