1-201039744-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000069.3(CACNA1S):​c.*87G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000367 in 1,549,776 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00038 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 3_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.19
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNA1SNM_000069.3 linkuse as main transcriptc.*87G>A 3_prime_UTR_variant 44/44 ENST00000362061.4
LOC101929305XR_922410.3 linkuse as main transcriptn.1378-2111C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNA1SENST00000362061.4 linkuse as main transcriptc.*87G>A 3_prime_UTR_variant 44/441 NM_000069.3 P2
ENST00000415359.1 linkuse as main transcriptn.211-2111C>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152234
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000392
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000323
Gnomad OTH
AF:
0.00143
GnomAD4 exome
AF:
0.000379
AC:
530
AN:
1397542
Hom.:
0
Cov.:
25
AF XY:
0.000391
AC XY:
273
AN XY:
697896
show subpopulations
Gnomad4 AFR exome
AF:
0.000154
Gnomad4 AMR exome
AF:
0.000180
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000507
Gnomad4 SAS exome
AF:
0.0000946
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000458
Gnomad4 OTH exome
AF:
0.000273
GnomAD4 genome
AF:
0.000256
AC:
39
AN:
152234
Hom.:
0
Cov.:
34
AF XY:
0.000215
AC XY:
16
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.000193
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000323
Gnomad4 OTH
AF:
0.00143
Alfa
AF:
0.000208
Hom.:
0
Bravo
AF:
0.000363
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hypokalemic periodic paralysis, type 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.0070
DANN
Benign
0.22

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: rs577214090; hg19: chr1-201008872; API