1-201075485-G-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_000069.3(CACNA1S):​c.1948+10C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00115 in 1,509,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00096 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0012 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -2.55
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 -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 1-201075485-G-C is Benign according to our data. Variant chr1-201075485-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 254805.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1SNM_000069.3 linkuse as main transcriptc.1948+10C>G intron_variant ENST00000362061.4 NP_000060.2 Q13698
CACNA1SXM_005245478.4 linkuse as main transcriptc.1948+10C>G intron_variant XP_005245535.1 B1ALM3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1SENST00000362061.4 linkuse as main transcriptc.1948+10C>G intron_variant 1 NM_000069.3 ENSP00000355192.3 Q13698

Frequencies

GnomAD3 genomes
AF:
0.000960
AC:
131
AN:
136394
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.000484
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000499
Gnomad ASJ
AF:
0.00118
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00431
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000975
Gnomad OTH
AF:
0.00270
GnomAD3 exomes
AF:
0.000570
AC:
143
AN:
250964
Hom.:
0
AF XY:
0.000538
AC XY:
73
AN XY:
135640
show subpopulations
Gnomad AFR exome
AF:
0.000369
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.000596
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00131
Gnomad NFE exome
AF:
0.000783
Gnomad OTH exome
AF:
0.000653
GnomAD4 exome
AF:
0.00117
AC:
1605
AN:
1372982
Hom.:
0
Cov.:
39
AF XY:
0.00111
AC XY:
761
AN XY:
683276
show subpopulations
Gnomad4 AFR exome
AF:
0.000289
Gnomad4 AMR exome
AF:
0.000303
Gnomad4 ASJ exome
AF:
0.000630
Gnomad4 EAS exome
AF:
0.0000847
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00127
Gnomad4 NFE exome
AF:
0.00138
Gnomad4 OTH exome
AF:
0.00104
GnomAD4 genome
AF:
0.000960
AC:
131
AN:
136438
Hom.:
0
Cov.:
30
AF XY:
0.00110
AC XY:
72
AN XY:
65230
show subpopulations
Gnomad4 AFR
AF:
0.000483
Gnomad4 AMR
AF:
0.000499
Gnomad4 ASJ
AF:
0.00118
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00431
Gnomad4 NFE
AF:
0.000975
Gnomad4 OTH
AF:
0.00268
Alfa
AF:
0.000171
Hom.:
0

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsFeb 27, 2020- -
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Hypokalemic periodic paralysis, type 1 Benign:2
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. -
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Malignant hyperthermia, susceptibility to, 5;C2749982:Thyrotoxic periodic paralysis, susceptibility to, 1;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 21, 2021- -
Congenital myopathy 18 Benign:1
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Thyrotoxic periodic paralysis, susceptibility to, 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
Malignant hyperthermia, susceptibility to, 5 Benign:1
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.028
DANN
Benign
0.37

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.

Other links and lift over

dbSNP: rs201173419; hg19: chr1-201044613; API