rs16847669

Variant summary

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

The NM_000069.3(CACNA1S):​c.1548G>A​(p.Ser516=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00574 in 1,614,088 control chromosomes in the GnomAD database, including 323 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.025 ( 157 hom., cov: 32)
Exomes 𝑓: 0.0038 ( 166 hom. )

Consequence

CACNA1S
NM_000069.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: -3.76
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 1-201077950-C-T is Benign according to our data. Variant chr1-201077950-C-T is described in ClinVar as [Benign]. Clinvar id is 254799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.76 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0798 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNA1SNM_000069.3 linkuse as main transcriptc.1548G>A p.Ser516= synonymous_variant 11/44 ENST00000362061.4
CACNA1SXM_005245478.4 linkuse as main transcriptc.1548G>A p.Ser516= synonymous_variant 11/43

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNA1SENST00000362061.4 linkuse as main transcriptc.1548G>A p.Ser516= synonymous_variant 11/441 NM_000069.3 P2

Frequencies

GnomAD3 genomes
AF:
0.0249
AC:
3788
AN:
152150
Hom.:
157
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0823
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00890
Gnomad ASJ
AF:
0.0412
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.000647
Gnomad OTH
AF:
0.0186
GnomAD3 exomes
AF:
0.00861
AC:
2165
AN:
251436
Hom.:
72
AF XY:
0.00688
AC XY:
935
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.0850
Gnomad AMR exome
AF:
0.00460
Gnomad ASJ exome
AF:
0.0423
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00173
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000853
Gnomad OTH exome
AF:
0.00782
GnomAD4 exome
AF:
0.00375
AC:
5483
AN:
1461820
Hom.:
166
Cov.:
41
AF XY:
0.00347
AC XY:
2524
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.0874
Gnomad4 AMR exome
AF:
0.00537
Gnomad4 ASJ exome
AF:
0.0416
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00226
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000469
Gnomad4 OTH exome
AF:
0.00820
GnomAD4 genome
AF:
0.0249
AC:
3788
AN:
152268
Hom.:
157
Cov.:
32
AF XY:
0.0243
AC XY:
1807
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0821
Gnomad4 AMR
AF:
0.00889
Gnomad4 ASJ
AF:
0.0412
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00249
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000647
Gnomad4 OTH
AF:
0.0184
Alfa
AF:
0.00876
Hom.:
41
Bravo
AF:
0.0285
Asia WGS
AF:
0.00260
AC:
9
AN:
3478
EpiCase
AF:
0.000872
EpiControl
AF:
0.00142

ClinVar

Significance: Benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Malignant hyperthermia, susceptibility to, 5 Benign:3
Benign, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthFeb 05, 2024- -
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthMar 29, 2019- -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJul 15, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Hypokalemic periodic paralysis, type 1 Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
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), LabcorpJan 31, 2024- -
Congenital myopathy 18 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Thyrotoxic periodic paralysis, susceptibility to, 1 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
7.4
DANN
Benign
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs16847669; hg19: chr1-201047078; API