1-215786665-G-C
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_206933.4(USH2A):c.10387+5C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_206933.4 splice_region, intron
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 -4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| USH2A | NM_206933.4 | c.10387+5C>G | splice_region_variant, intron_variant | Intron 52 of 71 | ENST00000307340.8 | NP_996816.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| USH2A | ENST00000307340.8 | c.10387+5C>G | splice_region_variant, intron_variant | Intron 52 of 71 | 1 | NM_206933.4 | ENSP00000305941.3 | |||
| USH2A | ENST00000674083.1 | c.10387+5C>G | splice_region_variant, intron_variant | Intron 52 of 72 | ENSP00000501296.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000279 AC: 7AN: 251102 AF XY: 0.0000442 show subpopulations
GnomAD4 exome AF: 0.0000239 AC: 35AN: 1461612Hom.: 0 Cov.: 30 AF XY: 0.0000234 AC XY: 17AN XY: 727100 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152186Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74346 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Usher syndrome type 2A Uncertain:2
not specified Uncertain:1
The c.10387+5C>G variant in USH2A has not been previously reported in individual s with hearing loss, but has been identified in 2/66604 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs 746536041). Although this variant has been seen in the general population, its f requency is not high enough to rule out a pathogenic role. This variant is locat ed in the 5' splice region. Computational tools do not suggest an impact to spli cing. However, this information is not predictive enough to rule out pathogenici ty. In summary, the clinical significance of the c.10387+5C>G variant is uncerta in.
not provided Uncertain:1
This sequence change falls in intron 52 of the USH2A gene. It does not directly change the encoded amino acid sequence of the USH2A protein, but it affects a nucleotide within the consensus splice site of the intron. This variant is present in population databases (rs746536041, ExAC 0.003%). 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: 505338). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at