rs150708636
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7
The NM_000069.3(CACNA1S):c.2754G>A(p.Val918=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,609,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000021 ( 0 hom. )
Consequence
CACNA1S
NM_000069.3 synonymous
NM_000069.3 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.0330
Genes affected
CACNA1S (HGNC:1397): (calcium voltage-gated channel subunit alpha1 S) This gene encodes one of the five subunits of the slowly inactivating L-type voltage-dependent calcium channel in skeletal muscle cells. Mutations in this gene have been associated with hypokalemic periodic paralysis, thyrotoxic periodic paralysis and malignant hyperthermia susceptibility. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BP6
Variant 1-201065937-C-T is Benign according to our data. Variant chr1-201065937-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 294739.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-0.033 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CACNA1S | NM_000069.3 | c.2754G>A | p.Val918= | synonymous_variant | 22/44 | ENST00000362061.4 | NP_000060.2 | |
CACNA1S | XM_005245478.4 | c.2754G>A | p.Val918= | synonymous_variant | 22/43 | XP_005245535.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CACNA1S | ENST00000362061.4 | c.2754G>A | p.Val918= | synonymous_variant | 22/44 | 1 | NM_000069.3 | ENSP00000355192 | P2 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152182Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000161 AC: 4AN: 248608Hom.: 0 AF XY: 0.0000223 AC XY: 3AN XY: 134414
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GnomAD4 exome AF: 0.0000213 AC: 31AN: 1457744Hom.: 0 Cov.: 30 AF XY: 0.0000290 AC XY: 21AN XY: 725338
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GnomAD4 genome AF: 0.0000394 AC: 6AN: 152182Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3AN XY: 74336
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Hypokalemic periodic paralysis, type 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Dec 01, 2023 | CACNA1S: BP4, BP7 - |
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 25, 2024 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at