rs763695518

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_000069.3(CACNA1S):​c.4795C>T​(p.Arg1599Trp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,112 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1599Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 missense, splice_region

Scores

6
9
3
Splicing: ADA: 0.6021
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.63

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • hypokalemic periodic paralysis, type 1
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • malignant hyperthermia, susceptibility to, 5
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • congenital myopathy 18
    Inheritance: AR, AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • congenital myopathy
    Inheritance: SD, AD, AR Classification: STRONG Submitted by: Illumina, Genomics England PanelApp
  • hypokalemic periodic paralysis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000069.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
NM_000069.3
MANE Select
c.4795C>Tp.Arg1599Trp
missense splice_region
Exon 39 of 44NP_000060.2Q13698

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
ENST00000362061.4
TSL:1 MANE Select
c.4795C>Tp.Arg1599Trp
missense splice_region
Exon 39 of 44ENSP00000355192.3Q13698
CACNA1S
ENST00000367338.7
TSL:5
c.4738C>Tp.Arg1580Trp
missense splice_region
Exon 38 of 43ENSP00000356307.3B1ALM3
CACNA1S
ENST00000681874.1
c.4735C>Tp.Arg1579Trp
missense splice_region
Exon 38 of 43ENSP00000505162.1A0A7P0T8M7

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151906
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000318
AC:
8
AN:
251210
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461206
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726914
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33462
American (AMR)
AF:
0.00
AC:
0
AN:
44704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26110
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39658
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53276
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111610
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151906
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74158
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41340
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10576
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67964
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000570
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.40
BayesDel_addAF
Uncertain
0.072
D
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T
Eigen
Uncertain
0.21
Eigen_PC
Benign
0.11
FATHMM_MKL
Benign
0.74
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Pathogenic
0.86
D
MutationAssessor
Uncertain
2.5
M
PhyloP100
1.6
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-5.8
D
REVEL
Pathogenic
0.65
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.55
MutPred
0.60
Loss of disorder (P = 0.0063)
MVP
0.95
MPC
0.52
ClinPred
0.92
D
GERP RS
0.37
Varity_R
0.36
gMVP
0.71
Mutation Taster
=80/20
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.60
dbscSNV1_RF
Benign
0.37
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs763695518; hg19: chr1-201013458; API