rs188527711

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS2_Supporting

The NM_001292063.2(OTOG):​c.6179G>A​(p.Arg2060His) variant causes a missense change. The variant allele was found at a frequency of 0.00112 in 1,549,366 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2060L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00080 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 2 hom. )

Consequence

OTOG
NM_001292063.2 missense

Scores

1
5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 3.92

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.018020421).
BS2
High Homozygotes in GnomAdExome4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOGNM_001292063.2 linkc.6179G>A p.Arg2060His missense_variant Exon 37 of 56 ENST00000399397.6 NP_001278992.1 H9KVB3
OTOGNM_001277269.2 linkc.6215G>A p.Arg2072His missense_variant Exon 36 of 55 NP_001264198.1 Q6ZRI0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOGENST00000399397.6 linkc.6179G>A p.Arg2060His missense_variant Exon 37 of 56 5 NM_001292063.2 ENSP00000382329.2 H9KVB3
OTOGENST00000399391.7 linkc.6215G>A p.Arg2072His missense_variant Exon 36 of 55 5 ENSP00000382323.2 Q6ZRI0-1
OTOGENST00000342528.2 linkn.3517G>A non_coding_transcript_exon_variant Exon 13 of 22 2

Frequencies

GnomAD3 genomes
AF:
0.000802
AC:
122
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00131
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.000798
AC:
118
AN:
147896
AF XY:
0.000752
show subpopulations
Gnomad AFR exome
AF:
0.000147
Gnomad AMR exome
AF:
0.000692
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000371
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00160
Gnomad OTH exome
AF:
0.000697
GnomAD4 exome
AF:
0.00115
AC:
1607
AN:
1397102
Hom.:
2
Cov.:
31
AF XY:
0.00117
AC XY:
804
AN XY:
689148
show subpopulations
African (AFR)
AF:
0.000127
AC:
4
AN:
31598
American (AMR)
AF:
0.00106
AC:
38
AN:
35700
Ashkenazi Jewish (ASJ)
AF:
0.0000397
AC:
1
AN:
25176
East Asian (EAS)
AF:
0.000168
AC:
6
AN:
35738
South Asian (SAS)
AF:
0.000202
AC:
16
AN:
79236
European-Finnish (FIN)
AF:
0.0000638
AC:
3
AN:
46998
Middle Eastern (MID)
AF:
0.00123
AC:
7
AN:
5698
European-Non Finnish (NFE)
AF:
0.00136
AC:
1470
AN:
1078962
Other (OTH)
AF:
0.00107
AC:
62
AN:
57996
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
91
182
272
363
454
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
54
108
162
216
270
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000801
AC:
122
AN:
152264
Hom.:
0
Cov.:
32
AF XY:
0.000685
AC XY:
51
AN XY:
74464
show subpopulations
African (AFR)
AF:
0.000337
AC:
14
AN:
41548
American (AMR)
AF:
0.000719
AC:
11
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5176
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00131
AC:
89
AN:
68010
Other (OTH)
AF:
0.00190
AC:
4
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00103
Hom.:
0
Bravo
AF:
0.000880
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00130
AC:
5
ExAC
AF:
0.000379
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:1
May 15, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 2072 of the OTOG protein (p.Arg2072His). This variant is present in population databases (rs188527711, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with OTOG-related conditions. ClinVar contains an entry for this variant (Variation ID: 451001). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

May 19, 2021
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously reported as pathogenic or benign in association with hearing loss to our knowledge; This variant is associated with the following publications: (PMID: 28050010) -

Dec 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

OTOG: BP4, BS1 -

not specified Uncertain:1
Aug 10, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Arg2072His variant in OTOG has not been previously reported in individuals with hearing loss but has been identified in 0.14% (93/66920) of European chrom osomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute. org; dbSNP rs188527711). Although this variant has been seen in the general popu lation, its frequency is not high enough to rule out a pathogenic role. Computat ional prediction tools and conservation analysis do not provide strong support f or or against an impact to the protein. In summary, the clinical significance of the p.Arg2072His 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

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.38
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.10
T;.
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.018
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Uncertain
2.7
M;.
PhyloP100
3.9
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-1.6
N;.
REVEL
Benign
0.20
Sift
Benign
0.039
D;.
Sift4G
Benign
0.072
T;T
Vest4
0.33
MVP
0.27
ClinPred
0.043
T
GERP RS
4.5
Varity_R
0.065
gMVP
0.44
Mutation Taster
=90/10
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs188527711; hg19: chr11-17633764; API