rs370041629
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong
The NM_000069.3(CACNA1S):c.514C>T(p.Pro172Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,046 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. P172T) has been classified as Uncertain significance.
Frequency
Consequence
NM_000069.3 missense
Scores
Clinical Significance
Conservation
Publications
- congenital myopathy 18Inheritance: AD, AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- hypokalemic periodic paralysis, type 1Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
- malignant hyperthermia, susceptibility to, 5Inheritance: AD Classification: STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
- congenital myopathyInheritance: SD, AR, AD Classification: STRONG Submitted by: Illumina, Genomics England PanelApp
- hypokalemic periodic paralysisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152158Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251416 AF XY: 0.0000294 show subpopulations
GnomAD4 exome AF: 0.0000109 AC: 16AN: 1461888Hom.: 0 Cov.: 33 AF XY: 0.00000825 AC XY: 6AN XY: 727244 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152158Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74330 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1
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 -
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 172 of the CACNA1S protein (p.Pro172Ser). This variant is present in population databases (rs370041629, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with CACNA1S-related conditions. 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 CACNA1S 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at