rs16847669

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000069.3(CACNA1S):​c.1548G>A​(p.Ser516Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00574 in 1,614,088 control chromosomes in the GnomAD database, including 323 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.025 ( 157 hom., cov: 32)
Exomes 𝑓: 0.0038 ( 166 hom. )

Consequence

CACNA1S
NM_000069.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: -3.76

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):
  • 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 1-201077950-C-T is Benign according to our data. Variant chr1-201077950-C-T is described in ClinVar as Benign. ClinVar VariationId is 254799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.76 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0798 is higher than 0.05.

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.1548G>Ap.Ser516Ser
synonymous
Exon 11 of 44NP_000060.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1S
ENST00000362061.4
TSL:1 MANE Select
c.1548G>Ap.Ser516Ser
synonymous
Exon 11 of 44ENSP00000355192.3
CACNA1S
ENST00000367338.7
TSL:5
c.1548G>Ap.Ser516Ser
synonymous
Exon 11 of 43ENSP00000356307.3
CACNA1S
ENST00000681874.1
c.1548G>Ap.Ser516Ser
synonymous
Exon 11 of 43ENSP00000505162.1

Frequencies

GnomAD3 genomes
AF:
0.0249
AC:
3788
AN:
152150
Hom.:
157
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0823
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00890
Gnomad ASJ
AF:
0.0412
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.000647
Gnomad OTH
AF:
0.0186
GnomAD2 exomes
AF:
0.00861
AC:
2165
AN:
251436
AF XY:
0.00688
show subpopulations
Gnomad AFR exome
AF:
0.0850
Gnomad AMR exome
AF:
0.00460
Gnomad ASJ exome
AF:
0.0423
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000853
Gnomad OTH exome
AF:
0.00782
GnomAD4 exome
AF:
0.00375
AC:
5483
AN:
1461820
Hom.:
166
Cov.:
41
AF XY:
0.00347
AC XY:
2524
AN XY:
727220
show subpopulations
African (AFR)
AF:
0.0874
AC:
2926
AN:
33474
American (AMR)
AF:
0.00537
AC:
240
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0416
AC:
1088
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39696
South Asian (SAS)
AF:
0.00226
AC:
195
AN:
86258
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53420
Middle Eastern (MID)
AF:
0.00225
AC:
13
AN:
5768
European-Non Finnish (NFE)
AF:
0.000469
AC:
522
AN:
1111958
Other (OTH)
AF:
0.00820
AC:
495
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
310
619
929
1238
1548
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
110
220
330
440
550
<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:
0.0249
AC:
3788
AN:
152268
Hom.:
157
Cov.:
32
AF XY:
0.0243
AC XY:
1807
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.0821
AC:
3410
AN:
41528
American (AMR)
AF:
0.00889
AC:
136
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.0412
AC:
143
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00249
AC:
12
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.0136
AC:
4
AN:
294
European-Non Finnish (NFE)
AF:
0.000647
AC:
44
AN:
68022
Other (OTH)
AF:
0.0184
AC:
39
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
173
347
520
694
867
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
40
80
120
160
200
<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:
0.0123
Hom.:
99
Bravo
AF:
0.0285
Asia WGS
AF:
0.00260
AC:
9
AN:
3478
EpiCase
AF:
0.000872
EpiControl
AF:
0.00142

ClinVar

ClinVar submissions as Germline
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
Malignant hyperthermia, susceptibility to, 5 (3)
-
-
3
not specified (3)
-
-
2
Hypokalemic periodic paralysis, type 1 (2)
-
-
1
Congenital myopathy 18 (1)
-
-
1
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 (1)
-
-
1
not provided (1)
-
-
1
Thyrotoxic periodic paralysis, susceptibility to, 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
7.4
DANN
Benign
0.76
PhyloP100
-3.8
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs16847669; hg19: chr1-201047078; API