rs139956524

Positions:

chr1-201069522-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000069.3(CACNA1S):c.2440G>A(p.Ala814Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00191 in 1,592,980 control chromosomes in the GnomAD database, including 6 homozygotes. 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 0.0013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0020 ( 6 hom. )

Consequence

CACNA1S
NM_000069.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:8

Conservation

PhyloP100: 3.32

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024012804).

BP6

Variant 1-201069522-C-T is Benign according to our data. Variant chr1-201069522-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 294744.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}. Variant chr1-201069522-C-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00131 (200/152254) while in subpopulation NFE AF= 0.00237 (161/68024). AF 95% confidence interval is 0.00207. There are 0 homozygotes in gnomad4. There are 89 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 6 SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNA1S	NM_000069.3 linkuse as main transcript	c.2440G>A	p.Ala814Thr	missense_variant	18/44	ENST00000362061.4	NP_000060.2
CACNA1S	XM_005245478.4 linkuse as main transcript	c.2440G>A	p.Ala814Thr	missense_variant	18/43		XP_005245535.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CACNA1S	ENST00000362061.4 linkuse as main transcript	c.2440G>A	p.Ala814Thr	missense_variant	18/44	1	NM_000069.3	ENSP00000355192	P2

Frequencies

GnomAD3 genomes

AF:

0.00131

AC:

200

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000459

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00237

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.00121

AC:

254

AN:

210546

Hom.:

AF XY:

0.00119

AC XY:

134

AN XY:

112358

show subpopulations

Gnomad AFR exome

AF:

0.000293

Gnomad AMR exome

AF:

0.000458

Gnomad ASJ exome

AF:

0.00248

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000310

Gnomad FIN exome

AF:

0.000164

Gnomad NFE exome

AF:

0.00205

Gnomad OTH exome

AF:

0.00188

GnomAD4 exome

AF:

0.00198

AC:

2846

AN:

1440726

Hom.:

Cov.:

AF XY:

0.00190

AC XY:

1357

AN XY:

714162

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.000580

Gnomad4 ASJ exome

AF:

0.00269

Gnomad4 EAS exome

AF:

0.0000256

Gnomad4 SAS exome

AF:

0.000219

Gnomad4 FIN exome

AF:

0.000134

Gnomad4 NFE exome

AF:

0.00236

Gnomad4 OTH exome

AF:

0.00184

GnomAD4 genome

AF:

0.00131

AC:

200

AN:

152254

Hom.:

Cov.:

AF XY:

0.00120

AC XY:

AN XY:

74432

show subpopulations

Gnomad4 AFR

AF:

0.000457

Gnomad4 AMR

AF:

0.000850

Gnomad4 ASJ

AF:

0.000865

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.00237

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.00196

Hom.:

Bravo

AF:

0.00132

TwinsUK

AF:

0.00270

AC:

ALSPAC

AF:

0.00182

AC:

ESP6500AA

AF:

0.000455

AC:

ESP6500EA

AF:

0.00209

AC:

ExAC

AF:

0.00100

AC:

120

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:8

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:3

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	May 08, 2021	This variant is associated with the following publications: (PMID: 25132214, 25735680, 27153395) -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Likely benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	- -

not specified

Benign:1

Benign, no assertion criteria provided

clinical testing

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

- -

CACNA1S-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 08, 2020

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). -

Hypokalemic periodic paralysis, type 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 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 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:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Malignant hyperthermia, susceptibility to, 5

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Sep 20, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Uncertain

-0.060

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.52

D;D

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.32

FATHMM_MKL

Benign

0.54

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.078

MetaRNN

Benign

0.024

T;T

MetaSVM

Uncertain

0.38

MutationAssessor

Benign

2.0

.;M

MutationTaster

Benign

0.60

N;N

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-1.4

N;N

REVEL

Uncertain

0.30

Sift

Uncertain

0.026

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.0080

.;B

Vest4

0.36

MVP

0.90

MPC

0.10

ClinPred

0.045

GERP RS

2.7

Varity_R

0.12

gMVP

0.58

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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