rs559512010
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_001292063.2(OTOG):c.4246C>T(p.Arg1416Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000951 in 1,545,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict 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. R1416Q) 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.4246C>T | p.Arg1416Trp | missense_variant | Exon 34 of 56 | 5 | NM_001292063.2 | ENSP00000382329.2 | ||
| OTOG | ENST00000399391.7 | c.4282C>T | p.Arg1428Trp | missense_variant | Exon 33 of 55 | 5 | ENSP00000382323.2 | |||
| OTOG | ENST00000342528.2 | n.1584C>T | non_coding_transcript_exon_variant | Exon 10 of 22 | 2 |
Frequencies
GnomAD3 genomes AF: 0.000447 AC: 68AN: 152212Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000630 AC: 9AN: 142772 AF XY: 0.0000260 show subpopulations
GnomAD4 exome AF: 0.0000567 AC: 79AN: 1393274Hom.: 0 Cov.: 31 AF XY: 0.0000553 AC XY: 38AN XY: 686930 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000446 AC: 68AN: 152330Hom.: 0 Cov.: 33 AF XY: 0.000483 AC XY: 36AN XY: 74488 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis suggests that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1428 of the OTOG protein (p.Arg1428Trp). This variant is present in population databases (rs559512010, gnomAD 0.08%). 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: 505385). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The tryptophan amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -
not specified Benign:1
p.Arg1428Trp in exon 33 of OTOG: This variant is not expected to have clinical s ignificance due to a lack of conservation across species, including mammals. Of note, >10 mammals have a tryptophan (Trp) at this position despite high nearby a mino acid conservation. In addition, computational prediction tools do not sugge st a high likelihood of impact to the protein. It has also been identified in 1/ 820 African and 1/4346 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs559512010). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at