chr12-80209493-TG-T

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_001378609.3(OTOGL):​c.63del​(p.Leu22CysfsTer14) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000614 in 1,497,204 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (β˜…β˜…).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

OTOGL
NM_001378609.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 2.35
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 53 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 12-80209493-TG-T is Pathogenic according to our data. Variant chr12-80209493-TG-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 817079.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OTOGLNM_001378609.3 linkuse as main transcriptc.63del p.Leu22CysfsTer14 frameshift_variant 2/59 ENST00000547103.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OTOGLENST00000547103.7 linkuse as main transcriptc.63del p.Leu22CysfsTer14 frameshift_variant 2/595 NM_001378609.3 P1
OTOGLENST00000646859.1 linkuse as main transcriptc.63del p.Leu22CysfsTer14 frameshift_variant 7/63
OTOGLENST00000643417.1 linkuse as main transcriptn.723del non_coding_transcript_exon_variant 5/23

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152204
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000763
AC:
1
AN:
131040
Hom.:
0
AF XY:
0.0000140
AC XY:
1
AN XY:
71444
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000195
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000639
AC:
86
AN:
1344882
Hom.:
0
Cov.:
25
AF XY:
0.0000466
AC XY:
31
AN XY:
665052
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000286
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:
0.0000793
Gnomad4 OTH exome
AF:
0.0000354
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152322
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000114
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:2
Likely pathogenic, criteria provided, single submitterclinical testingGeneDxApr 20, 2018The c.36delG variant in the OTOGL gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. The c.36delG variant causes a frameshift starting with codon Leucine 13, changes this amino acid to a Cysteine residue, and creates a premature Stop codon at position 14 of the new reading frame, denoted p.Leu13CysfsX14. This variant is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. The c.36delG variant is not observed at a significant frequency in large population cohorts (Lek et al., 2016). We interpret c.36delG as a likely pathogenic variant. -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 08, 2022For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 817079). This variant has not been reported in the literature in individuals affected with OTOGL-related conditions. This variant is present in population databases (rs376104832, gnomAD 0.002%). This sequence change creates a premature translational stop signal (p.Leu13Cysfs*14) in the OTOGL gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in OTOGL are known to be pathogenic (PMID: 23122586). -
Autosomal recessive nonsyndromic hearing loss 84B Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsFeb 09, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs376104832; hg19: chr12-80603273; API