rs1453118437
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_001077350.3(NPRL3):c.1589T>C(p.Met530Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,130 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M530I) has been classified as Uncertain significance.
Frequency
Consequence
NM_001077350.3 missense
Scores
Clinical Significance
Conservation
Publications
- focal epilepsyInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- epilepsy, familial focal, with variable foci 3Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
- familial focal epilepsy with variable fociInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 34
GnomAD2 exomes AF: 0.00000405 AC: 1AN: 246806 AF XY: 0.00000744 show subpopulations
GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461130Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5AN XY: 726794 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 34
ClinVar
Submissions by phenotype
Epilepsy, familial focal, with variable foci 3 Uncertain:1
This sequence change replaces methionine with threonine at codon 530 of the NPRL3 protein (p.Met530Thr). The methionine residue is moderately conserved and there is a moderate physicochemical difference between methionine and threonine. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with an NPRL3-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at