rs4915477

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000069.3(CACNA1S):ā€‹c.1551T>Cā€‹(p.Gly517=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.635 in 1,613,174 control chromosomes in the GnomAD database, including 337,643 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.68 ( 37788 hom., cov: 33)
Exomes š‘“: 0.63 ( 299855 hom. )

Consequence

CACNA1S
NM_000069.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -1.15
Variant links:
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 1-201077947-A-G is Benign according to our data. Variant chr1-201077947-A-G is described in ClinVar as [Benign]. Clinvar id is 254800.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-201077947-A-G is described in Lovd as [Pathogenic]. Variant chr1-201077947-A-G is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-1.15 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.885 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1SNM_000069.3 linkuse as main transcriptc.1551T>C p.Gly517= synonymous_variant 11/44 ENST00000362061.4 NP_000060.2
CACNA1SXM_005245478.4 linkuse as main transcriptc.1551T>C p.Gly517= synonymous_variant 11/43 XP_005245535.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1SENST00000362061.4 linkuse as main transcriptc.1551T>C p.Gly517= synonymous_variant 11/441 NM_000069.3 ENSP00000355192 P2

Frequencies

GnomAD3 genomes
AF:
0.685
AC:
104086
AN:
152006
Hom.:
37747
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.893
Gnomad AMI
AF:
0.689
Gnomad AMR
AF:
0.652
Gnomad ASJ
AF:
0.712
Gnomad EAS
AF:
0.234
Gnomad SAS
AF:
0.295
Gnomad FIN
AF:
0.522
Gnomad MID
AF:
0.728
Gnomad NFE
AF:
0.651
Gnomad OTH
AF:
0.690
GnomAD3 exomes
AF:
0.579
AC:
145567
AN:
251274
Hom.:
45757
AF XY:
0.567
AC XY:
76949
AN XY:
135816
show subpopulations
Gnomad AFR exome
AF:
0.896
Gnomad AMR exome
AF:
0.586
Gnomad ASJ exome
AF:
0.706
Gnomad EAS exome
AF:
0.225
Gnomad SAS exome
AF:
0.321
Gnomad FIN exome
AF:
0.534
Gnomad NFE exome
AF:
0.654
Gnomad OTH exome
AF:
0.611
GnomAD4 exome
AF:
0.630
AC:
919893
AN:
1461050
Hom.:
299855
Cov.:
48
AF XY:
0.620
AC XY:
450324
AN XY:
726856
show subpopulations
Gnomad4 AFR exome
AF:
0.903
Gnomad4 AMR exome
AF:
0.590
Gnomad4 ASJ exome
AF:
0.712
Gnomad4 EAS exome
AF:
0.256
Gnomad4 SAS exome
AF:
0.321
Gnomad4 FIN exome
AF:
0.545
Gnomad4 NFE exome
AF:
0.663
Gnomad4 OTH exome
AF:
0.624
GnomAD4 genome
AF:
0.685
AC:
104183
AN:
152124
Hom.:
37788
Cov.:
33
AF XY:
0.668
AC XY:
49693
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.893
Gnomad4 AMR
AF:
0.651
Gnomad4 ASJ
AF:
0.712
Gnomad4 EAS
AF:
0.234
Gnomad4 SAS
AF:
0.295
Gnomad4 FIN
AF:
0.522
Gnomad4 NFE
AF:
0.651
Gnomad4 OTH
AF:
0.689
Alfa
AF:
0.674
Hom.:
42849
Bravo
AF:
0.710
Asia WGS
AF:
0.302
AC:
1057
AN:
3478
EpiCase
AF:
0.661
EpiControl
AF:
0.677

ClinVar

Significance: Benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015This variant is associated with the following publications: (PMID: 11940049) -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpFeb 11, 2016Variant summary: c.1551T>C affects a non-conserved nucleotide, resulting in a synonymous change. Mutation taster predicts this variant to be benign. 4/5 in silico tools via Alamut predict no change on RNA splicing site and ESEfinder predicts a gain of binding motif for splicing enhancer. This variant was found in 70806/121258 control chromosomes (with 22620 homozygotes) from ExAC at a frequency of 0.5839285, which significantly exceeds the maximal expected frequency of a pathogenic allele (0.0000013), suggesting this variant is a benign polymorphism. Taken together, considering the high frequency in controls and lack of predicted effect on splicing, this variant was classified as Benign. -
Hypokalemic periodic paralysis, type 1 Benign:2
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Benign:2
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsJun 20, 2017- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Malignant hyperthermia, susceptibility to, 5 Benign:1
Benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthMar 28, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.90
DANN
Benign
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs4915477; hg19: chr1-201047075; COSMIC: COSV62938741; API