rs111033412
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PM5PP3_ModeratePP5
The NM_206933.4(USH2A):c.6721C>T(p.Pro2241Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. P2241L) has been classified as Likely pathogenic.
Frequency
Consequence
NM_206933.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
USH2A | ENST00000307340.8 | c.6721C>T | p.Pro2241Ser | missense_variant | Exon 35 of 72 | 1 | NM_206933.4 | ENSP00000305941.3 | ||
USH2A | ENST00000674083.1 | c.6721C>T | p.Pro2241Ser | missense_variant | Exon 35 of 73 | ENSP00000501296.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461806Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727208
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 2241 of the USH2A protein (p.Pro2241Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of retinitis pigmentosa (internal data). ClinVar contains an entry for this variant (Variation ID: 48569). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt USH2A protein function with a positive predictive value of 95%. This variant disrupts the p.Pro2241 amino acid residue in USH2A. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 25999674, 26927203, 27318125, 28224992; internal data). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
not specified Uncertain:1
The Pro2241Ser variant in USH2A has not been reported in the literature nor prev iously identified by our laboratory. Computational analyses (biochemical amino a cid properties, conservation, PolyPhen2, SIFT, AlignGVGD) suggest that the varia nt may impact the protein. However, this information is not predictive enough to determine pathogenicity. It should also be noted that this variant was identifi ed in cis with the Cys759Phe USH2A variant. In summary, the clinical significanc e of this variant cannot be determined with certainty at this time. -
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