rs397517966
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_206933.4(USH2A):c.10517C>T(p.Thr3506Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,684 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. T3506P) has been classified as Uncertain significance.
Frequency
Consequence
NM_206933.4 missense
Scores
Clinical Significance
Conservation
Publications
- Usher syndrome type 2Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Usher syndrome type 2AInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
- retinitis pigmentosa 39Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- retinitis pigmentosaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -3 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| USH2A | ENST00000307340.8 | c.10517C>T | p.Thr3506Met | missense_variant | Exon 53 of 72 | 1 | NM_206933.4 | ENSP00000305941.3 | ||
| USH2A | ENST00000674083.1 | c.10517C>T | p.Thr3506Met | missense_variant | Exon 53 of 73 | ENSP00000501296.1 |
Frequencies
GnomAD3 genomes AF: 0.00 AC: 0AN: 152118Hom.: 0 Cov.: 33
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251226 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000151 AC: 22AN: 1461684Hom.: 0 Cov.: 31 AF XY: 0.0000138 AC XY: 10AN XY: 727148 show subpopulations
Age Distribution
GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 152118Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74310
ClinVar
Submissions by phenotype
Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Uncertain:1
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
not provided Uncertain:1
This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 3506 of the USH2A protein (p.Thr3506Met). This variant is present in population databases (rs397517966, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with USH2A-related conditions. ClinVar contains an entry for this variant (Variation ID: 48349). 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 methionine 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
Thr3506Met in exon 53 of USH2A: This variant is not expected to have clinical si gnificance because computational analyses (PolyPhen, SIFT, AlignGVGD, MAPP) do n ot suggest a high likelihood of impact to the protein primarily based upon a lac k of conservation across species including mammals. Of note, chimp and orangutan have a methionine at this position despite high nearby amino acid conservation. -
Inborn genetic diseases Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at