rs397517361
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_022124.6(CDH23):c.8726G>A(p.Ser2909Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,611,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_022124.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CDH23 | NM_022124.6 | c.8726G>A | p.Ser2909Asn | missense_variant | Exon 61 of 70 | ENST00000224721.12 | NP_071407.4 | |
CDH23 | NM_001171933.1 | c.2006G>A | p.Ser669Asn | missense_variant | Exon 14 of 23 | NP_001165404.1 | ||
CDH23 | NM_001171934.1 | c.2006G>A | p.Ser669Asn | missense_variant | Exon 14 of 22 | NP_001165405.1 | ||
LOC124902446 | XR_007062185.1 | n.2070C>T | non_coding_transcript_exon_variant | Exon 2 of 2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152200Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000807 AC: 2AN: 247778Hom.: 0 AF XY: 0.0000149 AC XY: 2AN XY: 134580
GnomAD4 exome AF: 0.00000206 AC: 3AN: 1459468Hom.: 0 Cov.: 32 AF XY: 0.00000276 AC XY: 2AN XY: 725818
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152318Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74478
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 2909 of the CDH23 protein (p.Ser2909Asn). This variant is present in population databases (rs397517361, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with CDH23-related conditions. ClinVar contains an entry for this variant (Variation ID: 46052). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The asparagine 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 Uncertain:1
The Ser2909Asn variant in CDH23 has not been reported in affected individuals or in large population studies. Computational analyses (biochemical amino acid pro perties, conservation, AlignGVGD, PolyPhen2) suggest that the Ser2909Asn variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In summary, additional information is needed to fully assess the clinical significance of the variant. -
Inborn genetic diseases Uncertain:1
The c.8726G>A (p.S2909N) alteration is located in exon 61 (coding exon 60) of the CDH23 gene. This alteration results from a G to A substitution at nucleotide position 8726, causing the serine (S) at amino acid position 2909 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Usher syndrome type 1 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at