rs397518032
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6
The NM_206933.4(USH2A):c.7844A>G(p.Gln2615Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,844 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).
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 -1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| USH2A | NM_206933.4 | c.7844A>G | p.Gln2615Arg | missense_variant | Exon 41 of 72 | ENST00000307340.8 | NP_996816.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| USH2A | ENST00000307340.8 | c.7844A>G | p.Gln2615Arg | missense_variant | Exon 41 of 72 | 1 | NM_206933.4 | ENSP00000305941.3 | ||
| USH2A | ENST00000674083.1 | c.7844A>G | p.Gln2615Arg | missense_variant | Exon 41 of 73 | ENSP00000501296.1 | ||||
| ENSG00000229242 | ENST00000414995.1 | n.60+2164T>C | intron_variant | Intron 1 of 1 | 3 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000797 AC: 2AN: 251070 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461844Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2AN XY: 727222 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
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 glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 2615 of the USH2A protein (p.Gln2615Arg). This variant is present in population databases (rs397518032, gnomAD 0.002%). 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: 48587). 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. -
not specified Benign:1
Gln2615Arg in exon 41 of USH2A: This variant is not expected to have clinical si gnificance because computational analyses (PolyPhen2, SIFT, AlignGVGD) do not su ggest a high likelihood of impact to the protein primarily based upon a lack of conservation across species including mammals. Of note, opossum has an arginine at this position despite high nearby amino acid conservation. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at