12-80210871-T-C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001378609.3(OTOGL):​c.104T>C​(p.Leu35Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000309 in 1,487,330 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

OTOGL
NM_001378609.3 missense

Scores

16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.818

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: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.057239592).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OTOGLNM_001378609.3 linkc.104T>C p.Leu35Ser missense_variant Exon 3 of 59 ENST00000547103.7 NP_001365538.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OTOGLENST00000547103.7 linkc.104T>C p.Leu35Ser missense_variant Exon 3 of 59 5 NM_001378609.3 ENSP00000447211.2 Q3ZCN5
OTOGLENST00000646859.1 linkc.104T>C p.Leu35Ser missense_variant Exon 8 of 63 ENSP00000496036.1 A0A2R8YF04
OTOGLENST00000643417.1 linkn.764T>C non_coding_transcript_exon_variant Exon 6 of 23

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000783
AC:
9
AN:
114874
AF XY:
0.0000633
show subpopulations
Gnomad AFR exome
AF:
0.000211
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000628
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000647
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000292
AC:
39
AN:
1335132
Hom.:
0
Cov.:
28
AF XY:
0.0000288
AC XY:
19
AN XY:
659304
show subpopulations
African (AFR)
AF:
0.0000339
AC:
1
AN:
29494
American (AMR)
AF:
0.00
AC:
0
AN:
31822
Ashkenazi Jewish (ASJ)
AF:
0.000411
AC:
10
AN:
24330
East Asian (EAS)
AF:
0.00
AC:
0
AN:
33714
South Asian (SAS)
AF:
0.00
AC:
0
AN:
73052
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33064
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5576
European-Non Finnish (NFE)
AF:
0.0000248
AC:
26
AN:
1048140
Other (OTH)
AF:
0.0000358
AC:
2
AN:
55940
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.419
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000460
AC:
7
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.432
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000174
Hom.:
0
Bravo
AF:
0.0000416
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000137
AC:
2

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Oct 13, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.77T>C (p.L26S) alteration is located in exon 2 (coding exon 2) of the OTOGL gene. This alteration results from a T to C substitution at nucleotide position 77, causing the leucine (L) at amino acid position 26 to be replaced by a serine (S). 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
-0.41
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
15
DANN
Benign
0.96
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.52
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.36
T;.;T
M_CAP
Benign
0.0078
T
MetaRNN
Benign
0.057
T;T;T
MetaSVM
Benign
-0.97
T
PhyloP100
0.82
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.54
.;.;N
REVEL
Benign
0.012
Sift
Benign
0.44
.;.;T
Sift4G
Benign
0.11
.;.;T
Vest4
0.31
MutPred
0.41
.;.;Gain of disorder (P = 0.0024);
MVP
0.099
MPC
0.026
ClinPred
0.046
T
GERP RS
0.63
gMVP
0.59
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs766428430; hg19: chr12-80604651; API