rs764148985
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PP3_ModeratePP5_Very_Strong
The NM_000435.3(NOTCH3):c.1774C>T(p.Arg592Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,736 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 Likely pathogenic (★★).
Frequency
Consequence
NM_000435.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 10 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NOTCH3 | ENST00000263388.7 | c.1774C>T | p.Arg592Cys | missense_variant | Exon 11 of 33 | 1 | NM_000435.3 | ENSP00000263388.1 | ||
NOTCH3 | ENST00000601011.1 | c.1771C>T | p.Arg591Cys | missense_variant | Exon 11 of 23 | 5 | ENSP00000473138.1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.00000399 AC: 1AN: 250378Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135638
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461736Hom.: 0 Cov.: 33 AF XY: 0.00000413 AC XY: 3AN XY: 727178
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Pathogenic:3
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 592 of the NOTCH3 protein (p.Arg592Cys). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individuals with clinical features of CADASIL (PMID: 19488902, 20167921, 22664156; internal data). ClinVar contains an entry for this variant (Variation ID: 808495). 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 NOTCH3 protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -
NOTCH3: PM1:Strong, PM2, PS4:Moderate -
The frequency of this variant in the general population is consistent with pathogenicity (http://gnomad.broadinstitute.org). This variant has been identified in at least one individual with clinical features associated with CADASIL. In some published literature, this variant is referred to as c.1852C>T. This variant alters a critical location within the protein, and is expected to severely affect function and cause disease. Greater than 90% of NOTCH3 pathogenic variants associated with CADASIL involve the gain or loss of a cysteine residue within the epidermal growth factor (EGF)-like repeat domain (PMID: 32457593, 20301673). -
Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 Pathogenic:1
_x000D_ Criteria applied: PS4_MOD, PM1, PM2_SUP, PP3 -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at