rs876657936

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_001292063.2(OTOG):​c.1184A>C​(p.Gln395Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,541,236 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 1 hom. )

Consequence

OTOG
NM_001292063.2 missense

Scores

6
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 2.15
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07497594).
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.000107 (149/1388910) while in subpopulation AMR AF= 0.00325 (116/35682). AF 95% confidence interval is 0.00277. There are 1 homozygotes in gnomad4_exome. There are 56 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOGNM_001292063.2 linkc.1184A>C p.Gln395Pro missense_variant Exon 11 of 56 ENST00000399397.6 NP_001278992.1 H9KVB3
OTOGNM_001277269.2 linkc.1220A>C p.Gln407Pro missense_variant Exon 10 of 55 NP_001264198.1 Q6ZRI0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOGENST00000399397.6 linkc.1184A>C p.Gln395Pro missense_variant Exon 11 of 56 5 NM_001292063.2 ENSP00000382329.2 H9KVB3
OTOGENST00000399391.7 linkc.1220A>C p.Gln407Pro missense_variant Exon 10 of 55 5 ENSP00000382323.2 Q6ZRI0-1
OTOGENST00000498332.5 linkn.1090A>C non_coding_transcript_exon_variant Exon 10 of 16 5

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152208
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00157
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000683
AC:
95
AN:
139058
Hom.:
1
AF XY:
0.000423
AC XY:
32
AN XY:
75676
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00371
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:
0.0000374
Gnomad OTH exome
AF:
0.000478
GnomAD4 exome
AF:
0.000107
AC:
149
AN:
1388910
Hom.:
1
Cov.:
31
AF XY:
0.0000817
AC XY:
56
AN XY:
685458
show subpopulations
Gnomad4 AFR exome
AF:
0.0000317
Gnomad4 AMR exome
AF:
0.00325
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:
0.0000241
Gnomad4 OTH exome
AF:
0.000104
GnomAD4 genome
AF:
0.000197
AC:
30
AN:
152326
Hom.:
0
Cov.:
33
AF XY:
0.000161
AC XY:
12
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00170
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000185
Hom.:
0
Bravo
AF:
0.000340
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Oct 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 08, 2021
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

not specified Uncertain:1
Jan 21, 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.Gln407Pro variant in OTOG has not been previously reported in individuals with hearing loss. Data from large population studies are insufficient to assess the frequency of this variant. Computational prediction tools and conservation analysis do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the p.Gln407Pro variant is uncertain. -

Autosomal recessive nonsyndromic hearing loss 18B Uncertain:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

OTOG-related disorder Benign:1
Apr 05, 2023
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.18
T;.
Eigen
Benign
0.087
Eigen_PC
Benign
0.17
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.79
T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.075
T;T
MetaSVM
Benign
-0.43
T
MutationAssessor
Benign
0.77
N;.
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.2
D;.
REVEL
Uncertain
0.50
Sift
Uncertain
0.018
D;.
Sift4G
Benign
0.082
T;T
Vest4
0.45
MVP
0.29
ClinPred
0.090
T
GERP RS
4.4
Varity_R
0.48
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs876657936; hg19: chr11-17580679; API