rs56021911

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000069.3(CACNA1S):​c.3525+18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0198 in 1,535,186 control chromosomes in the GnomAD database, including 355 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 26 hom., cov: 33)
Exomes 𝑓: 0.020 ( 329 hom. )

Consequence

CACNA1S
NM_000069.3 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.277
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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 1-201059171-G-A is Benign according to our data. Variant chr1-201059171-G-A is described in ClinVar as [Benign]. Clinvar id is 254826.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-201059171-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0151 (2307/152284) while in subpopulation NFE AF= 0.0227 (1542/68026). AF 95% confidence interval is 0.0217. There are 26 homozygotes in gnomad4. There are 1147 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 26 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1SNM_000069.3 linkc.3525+18C>T intron_variant Intron 27 of 43 ENST00000362061.4 NP_000060.2 Q13698
CACNA1SXM_005245478.4 linkc.3525+18C>T intron_variant Intron 27 of 42 XP_005245535.1 B1ALM3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1SENST00000362061.4 linkc.3525+18C>T intron_variant Intron 27 of 43 1 NM_000069.3 ENSP00000355192.3 Q13698

Frequencies

GnomAD3 genomes
AF:
0.0152
AC:
2308
AN:
152166
Hom.:
26
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00456
Gnomad AMI
AF:
0.0307
Gnomad AMR
AF:
0.00910
Gnomad ASJ
AF:
0.00835
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.0330
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0227
Gnomad OTH
AF:
0.0100
GnomAD3 exomes
AF:
0.0145
AC:
3630
AN:
250114
Hom.:
44
AF XY:
0.0146
AC XY:
1972
AN XY:
135144
show subpopulations
Gnomad AFR exome
AF:
0.00297
Gnomad AMR exome
AF:
0.00548
Gnomad ASJ exome
AF:
0.00676
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.00204
Gnomad FIN exome
AF:
0.0300
Gnomad NFE exome
AF:
0.0223
Gnomad OTH exome
AF:
0.0157
GnomAD4 exome
AF:
0.0203
AC:
28125
AN:
1382902
Hom.:
329
Cov.:
24
AF XY:
0.0199
AC XY:
13751
AN XY:
692292
show subpopulations
Gnomad4 AFR exome
AF:
0.00285
Gnomad4 AMR exome
AF:
0.00597
Gnomad4 ASJ exome
AF:
0.00917
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.00197
Gnomad4 FIN exome
AF:
0.0300
Gnomad4 NFE exome
AF:
0.0238
Gnomad4 OTH exome
AF:
0.0178
GnomAD4 genome
AF:
0.0151
AC:
2307
AN:
152284
Hom.:
26
Cov.:
33
AF XY:
0.0154
AC XY:
1147
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.00455
Gnomad4 AMR
AF:
0.00902
Gnomad4 ASJ
AF:
0.00835
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.0330
Gnomad4 NFE
AF:
0.0227
Gnomad4 OTH
AF:
0.00993
Alfa
AF:
0.0197
Hom.:
2
Bravo
AF:
0.0132
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:3
Mar 03, 2016
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This 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. -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:3
Oct 26, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Malignant hyperthermia, susceptibility to, 5;C2749982:Thyrotoxic periodic paralysis, susceptibility to, 1;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Aug 02, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hypokalemic periodic paralysis, type 1 Benign:1
Apr 11, 2023
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Congenital myopathy 18 Benign:1
Apr 11, 2023
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Thyrotoxic periodic paralysis, susceptibility to, 1 Benign:1
Apr 11, 2023
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Malignant hyperthermia, susceptibility to, 5 Benign:1
Apr 11, 2023
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.66
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: rs56021911; hg19: chr1-201028299; API