rs1131653

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_199460.4(CACNA1C):​c.1126G>A​(p.Val376Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000531 in 1,582,866 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

CACNA1C
NM_199460.4 missense

Scores

5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 4.86

Publications

2 publications found
Variant links:
Genes affected
CACNA1C (HGNC:1390): (calcium voltage-gated channel subunit alpha1 C) This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. The alpha-1 subunit consists of 24 transmembrane segments and forms the pore through which ions pass into the cell. The calcium channel consists of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. There are multiple isoforms of each of these proteins, either encoded by different genes or the result of alternative splicing of transcripts. The protein encoded by this gene binds to and is inhibited by dihydropyridine. Alternative splicing results in many transcript variants encoding different proteins. Some of the predicted proteins may not produce functional ion channel subunits. [provided by RefSeq, Oct 2012]
CACNA1C Gene-Disease associations (from GenCC):
  • Timothy syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae)
  • neurodevelopmental disorder with hypotonia, language delay, and skeletal defects with or without seizures
    Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
  • long QT syndrome
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • long QT syndrome 8
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • Brugada syndrome
    Inheritance: AD Classification: SUPPORTIVE, NO_KNOWN Submitted by: Orphanet, ClinGen
  • Brugada syndrome 3
    Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • intellectual disability
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • short QT syndrome
    Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.09785399).
BP6
Variant 12-2504854-G-A is Benign according to our data. Variant chr12-2504854-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 574774.
BS2
High AC in GnomAdExome4 at 80 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_199460.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1C
NM_000719.7
MANE Select
c.1126G>Ap.Val376Ile
missense
Exon 8 of 47NP_000710.5
CACNA1C
NM_001167623.2
MANE Plus Clinical
c.1217+315G>A
intron
N/ANP_001161095.1
CACNA1C
NM_199460.4
c.1126G>Ap.Val376Ile
missense
Exon 8 of 50NP_955630.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1C
ENST00000399655.6
TSL:1 MANE Select
c.1126G>Ap.Val376Ile
missense
Exon 8 of 47ENSP00000382563.1
CACNA1C
ENST00000682544.1
c.1216G>Ap.Val406Ile
missense
Exon 8 of 50ENSP00000507184.1
CACNA1C
ENST00000347598.9
TSL:1
c.1126G>Ap.Val376Ile
missense
Exon 8 of 49ENSP00000266376.6

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151946
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000362
AC:
9
AN:
248536
AF XY:
0.0000297
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000559
AC:
80
AN:
1430802
Hom.:
0
Cov.:
27
AF XY:
0.0000462
AC XY:
33
AN XY:
713982
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32856
American (AMR)
AF:
0.0000224
AC:
1
AN:
44668
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25928
East Asian (EAS)
AF:
0.0000253
AC:
1
AN:
39548
South Asian (SAS)
AF:
0.0000468
AC:
4
AN:
85510
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5720
European-Non Finnish (NFE)
AF:
0.0000637
AC:
69
AN:
1083894
Other (OTH)
AF:
0.0000843
AC:
5
AN:
59288
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.431
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000263
AC:
4
AN:
152064
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41482
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5114
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67994
Other (OTH)
AF:
0.00
AC:
0
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000772
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000331
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cardiovascular phenotype (1)
-
1
-
Long QT syndrome (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
CardioboostArm
Benign
0.0000030
BayesDel_addAF
Benign
-0.0062
T
BayesDel_noAF
Uncertain
-0.010
CADD
Uncertain
25
DANN
Benign
0.83
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.25
FATHMM_MKL
Uncertain
0.85
D
M_CAP
Benign
0.051
D
MetaRNN
Benign
0.098
T
MetaSVM
Uncertain
0.28
D
MutationAssessor
Benign
0.22
N
PhyloP100
4.9
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
0.080
N
REVEL
Uncertain
0.43
Sift
Benign
0.62
T
Sift4G
Benign
0.75
T
Polyphen
0.0010
B
Vest4
0.27
MVP
0.88
MPC
0.86
ClinPred
0.048
T
GERP RS
4.3
PromoterAI
0.0021
Neutral
gMVP
0.73
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs1131653; hg19: chr12-2614020; COSMIC: COSV59696899; API