rs149547196

Variant names:

Variant summary

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

The NM_000069.3(CACNA1S):c.5515C>T(p.Pro1839Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00313 in 1,614,144 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1839Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0023 ( 1 hom., cov: 34)

Exomes 𝑓: 0.0032 ( 9 hom. )

Consequence

CACNA1S
NM_000069.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:17

Conservation

PhyloP100: 0.886

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]

CACNA1S links:

ENSG00000234132 (HGNC:):

ENSG00000234132 links:

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 (MetaRNN=0.004075408).

BP6

Variant 1-201039938-G-A is Benign according to our data. Variant chr1-201039938-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 294705.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-201039938-G-A is described in Lovd as [Likely_benign]. Variant chr1-201039938-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00232 (354/152356) while in subpopulation AMR AF= 0.00483 (74/15310). AF 95% confidence interval is 0.00395. There are 1 homozygotes in gnomad4. There are 157 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 9 SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1S	NM_000069.3 link	c.5515C>T	p.Pro1839Ser	missense_variant	Exon 44 of 44	ENST00000362061.4	NP_000060.2	Q13698
CACNA1S	XM_005245478.4 link	c.5458C>T	p.Pro1820Ser	missense_variant	Exon 43 of 43		XP_005245535.1	B1ALM3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNA1S	ENST00000362061.4 link	c.5515C>T	p.Pro1839Ser	missense_variant	Exon 44 of 44	1	NM_000069.3	ENSP00000355192.3		Q13698

Frequencies

GnomAD3 genomes

AF:

0.00233

AC:

354

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000651

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00484

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.000282

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00347

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00243

AC:

611

AN:

251306

Hom.:

AF XY:

0.00236

AC XY:

321

AN XY:

135838

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.00393

Gnomad ASJ exome

AF:

0.00228

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.00357

Gnomad OTH exome

AF:

0.00489

GnomAD4 exome

AF:

0.00321

AC:

4698

AN:

1461788

Hom.:

Cov.:

AF XY:

0.00309

AC XY:

2246

AN XY:

727206

show subpopulations

Gnomad4 AFR exome

AF:

0.000388

Gnomad4 AMR exome

AF:

0.00445

Gnomad4 ASJ exome

AF:

0.00207

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000243

Gnomad4 FIN exome

AF:

0.000356

Gnomad4 NFE exome

AF:

0.00379

Gnomad4 OTH exome

AF:

0.00295

GnomAD4 genome

AF:

0.00232

AC:

354

AN:

152356

Hom.:

Cov.:

AF XY:

0.00211

AC XY:

157

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.000649

Gnomad4 AMR

AF:

0.00483

Gnomad4 ASJ

AF:

0.00202

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.000282

Gnomad4 NFE

AF:

0.00347

Gnomad4 OTH

AF:

0.00236

Alfa

AF:

0.00280

Hom.:

Bravo

AF:

0.00274

TwinsUK

AF:

0.00431

AC:

ALSPAC

AF:

0.00597

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00372

AC:

ExAC

AF:

0.00230

AC:

279

EpiCase

AF:

0.00300

EpiControl

AF:

0.00326

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:17

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Feb 25, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 25658027, 27153395) -

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

CACNA1S: BP4, BS2 -

Oct 02, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Malignant hyperthermia, susceptibility to, 5

Benign:3

Apr 11, 2023

Genome-Nilou Lab

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 20, 2022

Color Diagnostics, LLC DBA Color Health

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 28, 2024

All of Us Research Program, National Institutes of Health

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 02, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hypokalemic periodic paralysis, type 1

Benign:2

Apr 11, 2023

Genome-Nilou Lab

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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 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. -

CACNA1S-related disorder

Benign:1

Dec 06, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Congenital myopathy 18

Benign:1

Apr 11, 2023

Genome-Nilou Lab

Significance: Likely 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: Likely 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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.65

BayesDel_noAF

Benign

-0.71

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Benign

0.055

T;T

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.58

T;T

M_CAP

Benign

0.019

MetaRNN

Benign

0.0041

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.095

.;N

PrimateAI

Benign

0.27

PROVEAN

Benign

-2.1

N;N

REVEL

Benign

0.045

Sift

Benign

0.37

T;T

Sift4G

Benign

0.50

T;T

Polyphen

0.0

.;B

Vest4

0.022

MVP

0.61

MPC

0.11

ClinPred

0.0032

GERP RS

0.13

Varity_R

0.055

gMVP

0.15

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over