rs876657946

Variant summary

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

The NM_001378609.3(OTOGL):​c.2506A>G​(p.Thr836Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000312 in 1,603,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T836M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

OTOGL
NM_001378609.3 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 84B
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • 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: 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=0.18146986).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOGLNM_001378609.3 linkc.2506A>G p.Thr836Ala missense_variant Exon 23 of 59 ENST00000547103.7 NP_001365538.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOGLENST00000547103.7 linkc.2506A>G p.Thr836Ala missense_variant Exon 23 of 59 5 NM_001378609.3 ENSP00000447211.2
OTOGLENST00000646859.1 linkc.2506A>G p.Thr836Ala missense_variant Exon 28 of 63 ENSP00000496036.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000123
AC:
3
AN:
244834
AF XY:
0.00000752
show subpopulations
Gnomad AFR exome
AF:
0.0000649
Gnomad AMR exome
AF:
0.0000585
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000276
AC:
4
AN:
1451596
Hom.:
0
Cov.:
30
AF XY:
0.00000277
AC XY:
2
AN XY:
722622
show subpopulations
African (AFR)
AF:
0.0000301
AC:
1
AN:
33268
American (AMR)
AF:
0.0000449
AC:
2
AN:
44510
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26046
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39622
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53314
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5734
European-Non Finnish (NFE)
AF:
9.06e-7
AC:
1
AN:
1103278
Other (OTH)
AF:
0.00
AC:
0
AN:
60016
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74276
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000241
AC:
1
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15250
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 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: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Dec 17, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Thr827Ala variant in OTOGL has not been previously reported in individuals with hearing loss and was absent from large population studies. Computational p rediction tools and conservation analyses do not provide strong support for or a gainst an impact to the protein. In summary, the clinical significance of the p. Thr827Ala variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
19
DANN
Benign
0.96
Eigen
Benign
-0.0064
Eigen_PC
Benign
0.062
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.48
T;.;T
M_CAP
Benign
0.0088
T
MetaRNN
Benign
0.18
T;T;T
MetaSVM
Benign
-1.1
T
PhyloP100
1.9
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.6
.;.;N
REVEL
Benign
0.099
Sift
Benign
0.28
.;.;T
Sift4G
Benign
0.17
.;.;T
Vest4
0.28
MutPred
0.56
.;.;Loss of phosphorylation at T827 (P = 0.0344);
MVP
0.20
MPC
0.033
ClinPred
0.070
T
GERP RS
2.8
gMVP
0.39
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs876657946; hg19: chr12-80663922; API