rs397517996
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2
The NM_206933.4(USH2A):c.15038C>T(p.Thr5013Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,160 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar 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: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| USH2A | NM_206933.4 | c.15038C>T | p.Thr5013Ile | missense_variant | Exon 69 of 72 | ENST00000307340.8 | NP_996816.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152160Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome Cov.: 31
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152160Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74336 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
The Thr5013Ile variant in USH2A has not been reported in the literature nor prev iously identified by our laboratory. Computational analyses (biochemical amino a cid properties, homology, PolyPhen2, SIFT, AlignGVGD) do not provide strong supp ort for or against pathogenicity. In summary, the clinical significance of this variant cannot be determined with certainty at this time. -
not provided Uncertain:1
This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 5013 of the USH2A protein (p.Thr5013Ile). This variant is not present in population databases (gnomAD no frequency). 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: 48452). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt USH2A protein function with a negative predictive value of 95%. 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. -
Retinitis pigmentosa 39 Uncertain:1
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Usher syndrome type 2A Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at