9-114424369-T-G
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting
The NM_015404.4(WHRN):c.1381A>C(p.Met461Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00039 in 1,612,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. M461V) has been classified as Uncertain significance.
Frequency
Consequence
NM_015404.4 missense
Scores
Clinical Significance
Conservation
Publications
- Usher syndrome type 2DInheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
- autosomal recessive nonsyndromic hearing loss 31Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
- nonsyndromic genetic hearing lossInheritance: AR Classification: MODERATE Submitted by: ClinGen
- hearing loss, autosomal recessiveInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Usher syndrome type 2Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| WHRN | NM_015404.4 | c.1381A>C | p.Met461Leu | missense_variant | Exon 6 of 12 | ENST00000362057.4 | NP_056219.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| WHRN | ENST00000362057.4 | c.1381A>C | p.Met461Leu | missense_variant | Exon 6 of 12 | 1 | NM_015404.4 | ENSP00000354623.3 |
Frequencies
GnomAD3 genomes AF: 0.000223 AC: 34AN: 152130Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000302 AC: 76AN: 251368 AF XY: 0.000272 show subpopulations
GnomAD4 exome AF: 0.000407 AC: 594AN: 1460072Hom.: 0 Cov.: 34 AF XY: 0.000384 AC XY: 279AN XY: 726340 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000223 AC: 34AN: 152130Hom.: 0 Cov.: 33 AF XY: 0.000135 AC XY: 10AN XY: 74306 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
In silico analysis indicates 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 methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 461 of the WHRN protein (p.Met461Leu). This variant is present in population databases (rs144878400, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with WHRN-related conditions. ClinVar contains an entry for this variant (Variation ID: 504565). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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.
BP4, PM2_moderate
not specified Uncertain:1
The p.Met461Leu variant in WHRN has not been previously reported in individuals with hearing loss, but has been identified in 74/126578 of European chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org/; d bSNP rs144878400). However, this frequency is not high enough to rule out pathog enicity. Computational prediction tools and conservation analysis suggest that t his variant may not impact the protein, though this information is not predictiv e enough to rule out pathogenicity. In summary, the clinical significance of the p.Met461Leu variant is uncertain. ACMG/AMP Criteria applied: BP4.
Autosomal recessive nonsyndromic hearing loss 31 Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Usher syndrome type 2D Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at