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
Consequence
NM_001292063.2 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive nonsyndromic hearing loss 18BInheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine, Ambry Genetics
- nonsyndromic genetic hearing lossInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- hearing loss, autosomal recessiveInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| OTOG | ENST00000399397.6 | c.6179G>A | p.Arg2060His | missense_variant | Exon 37 of 56 | 5 | NM_001292063.2 | ENSP00000382329.2 | ||
| OTOG | ENST00000399391.7 | c.6215G>A | p.Arg2072His | missense_variant | Exon 36 of 55 | 5 | ENSP00000382323.2 | |||
| OTOG | ENST00000342528.2 | n.3517G>A | non_coding_transcript_exon_variant | Exon 13 of 22 | 2 |
Frequencies
GnomAD3 genomes AF: 0.000802 AC: 122AN: 152148Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000798 AC: 118AN: 147896 AF XY: 0.000752 show subpopulations
GnomAD4 exome AF: 0.00115 AC: 1607AN: 1397102Hom.: 2 Cov.: 31 AF XY: 0.00117 AC XY: 804AN XY: 689148 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000801 AC: 122AN: 152264Hom.: 0 Cov.: 32 AF XY: 0.000685 AC XY: 51AN XY: 74464 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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. -
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) -
OTOG: BP4, BS1 -
not specified Uncertain:1
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
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at