rs774416016

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_000069.3(CACNA1S):​c.3686G>C​(p.Arg1229Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,608,584 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1229H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 missense

Scores

6
7
5

Clinical Significance

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

Conservation

PhyloP100: 4.21

Publications

7 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):
  • congenital myopathy 18
    Inheritance: AD, AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hypokalemic periodic paralysis, type 1
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • malignant hyperthermia, susceptibility to, 5
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • congenital myopathy
    Inheritance: SD, AR, AD 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: Likely_benign. The variant received -1 ACMG points.

BP6
Variant 1-201053568-C-G is Benign according to our data. Variant chr1-201053568-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 496658.

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
NM_000069.3
MANE Select
c.3686G>Cp.Arg1229Pro
missense
Exon 30 of 44NP_000060.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
ENST00000362061.4
TSL:1 MANE Select
c.3686G>Cp.Arg1229Pro
missense
Exon 30 of 44ENSP00000355192.3
CACNA1S
ENST00000367338.7
TSL:5
c.3629G>Cp.Arg1210Pro
missense
Exon 29 of 43ENSP00000356307.3
CACNA1S
ENST00000681874.1
c.3626G>Cp.Arg1209Pro
missense
Exon 29 of 43ENSP00000505162.1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151442
Hom.:
0
Cov.:
32
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:
0.000592
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000399
AC:
10
AN:
250584
AF XY:
0.0000369
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000549
AC:
8
AN:
1457142
Hom.:
0
Cov.:
35
AF XY:
0.00000552
AC XY:
4
AN XY:
724910
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33352
American (AMR)
AF:
0.00
AC:
0
AN:
44580
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25944
East Asian (EAS)
AF:
0.000178
AC:
7
AN:
39426
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86222
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52744
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5738
European-Non Finnish (NFE)
AF:
9.02e-7
AC:
1
AN:
1109080
Other (OTH)
AF:
0.00
AC:
0
AN:
60056
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000198
AC:
3
AN:
151442
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
73928
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41300
American (AMR)
AF:
0.00
AC:
0
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.000592
AC:
3
AN:
5068
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4786
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10432
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67846
Other (OTH)
AF:
0.00
AC:
0
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.00
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Malignant hyperthermia of anesthesia (1)
-
-
1
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Uncertain
0.052
T
BayesDel_noAF
Pathogenic
0.19
CADD
Pathogenic
32
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.62
D
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.78
T
M_CAP
Pathogenic
0.30
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
2.0
M
PhyloP100
4.2
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-6.0
D
REVEL
Pathogenic
0.67
Sift
Benign
0.11
T
Sift4G
Benign
0.10
T
Polyphen
0.98
D
Vest4
0.76
MutPred
0.52
Loss of MoRF binding (P = 0.0186)
MVP
0.97
MPC
0.62
ClinPred
0.55
D
GERP RS
4.0
Varity_R
0.82
gMVP
0.91
Mutation Taster
=69/31
polymorphism

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

Other links and lift over

dbSNP: rs774416016; hg19: chr1-201022696; API