rs149095062
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_001042432.2(CLN3):c.319C>T(p.Pro107Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,654 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P107R) has been classified as Uncertain significance.
Frequency
Consequence
NM_001042432.2 missense
Scores
Clinical Significance
Conservation
Publications
- inherited retinal dystrophyInheritance: AR Classification: DEFINITIVE Submitted by: G2P
- neuronal ceroid lipofuscinosisInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- neuronal ceroid lipofuscinosis 3Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Myriad Women’s Health
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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 |
|---|---|---|---|---|---|---|---|---|
| CLN3 | NM_001042432.2 | c.319C>T | p.Pro107Ser | missense_variant | Exon 6 of 16 | ENST00000636147.2 | NP_001035897.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152096Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000800 AC: 2AN: 250120 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.0000192 AC: 28AN: 1461558Hom.: 0 Cov.: 30 AF XY: 0.0000206 AC XY: 15AN XY: 727054 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152096Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74278 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
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not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Neuronal ceroid lipofuscinosis Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 107 of the CLN3 protein (p.Pro107Ser). This variant is present in population databases (rs149095062, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with CLN3-related conditions. ClinVar contains an entry for this variant (Variation ID: 434791). 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 expected to disrupt CLN3 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. -
Neuronal ceroid lipofuscinosis 3 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at